All of this really goes against the part where evilmrhenry says 'Also, this is for doing this legit; there are ways to pass items through, which can trivialize this quest.'
well, the cloak really isn't legit, but mutandis is just vanilla witchery, it works like the icy needles, they're carried away.
EDIT: I just realized a way that can skip A LOT on the tech route.
Void Pickaxe.
Thaumcraft discoveries are not lost on the spirit world, is just you're very limited to what you can do as there's no greatwood so you can't even do an arcane crafting table.
However, for making the void pickaxe you don't need that. all you need is to have it unlocked, and iron.
basically, after getting iron seeds and thus, iron ore. Make a iron capped wand, as it can be done on regular crafting table. Make a vanilla cauldron, then turn it into a crucible, as it takes no vis, just to use the iron wand. Then make a regular setup, with netherrack supporting the fire. Void seeds can be done with 8 tenebrae, 8 vacuos, and 2 alienis. you can get the tenebrae from cracked sand, the vacuos from empty bottles or phials, and the alienis from mana pearls. then you turn the void seeds to ingots with 8 metallum, and with 3 ingots you make a void pickaxe that can mine all you need, leaving only the glowstone bottleneck, but I think you can transmute redstone into glowstone with the alchemical catalyst, and the void pickaxe can of course mine redstone ore.
I just realized that I had botania aspects installed, with base regrowth you can do that. The only thing that comes to mind that might have also alienis is the world anchor, that is craftable with manasteel and mana pearls, (although is useless in the spirit world since it runs on enderpearls) and I'm pretty sure railcraft items have their aspects hardcoded instead of being based on ingredients, as iron tank blocks have aqua instead of just metallum.
Either way, if you can turn redstone to glowstone with the alchemical catalyst, you can make a thaumium pickaxe (there are several items with praecantatio avaiable) as it should be able to mine redsone ore.
Also, on a side note, if you consider bringing stacks of mutandis (remember is not a exploit, it just works) I would recommend also mutating nature seeds, as you can make magic fertilizer (and the mutandis is usually the hardest part) to speed up the magical crops that need upgrades, or just to get more essences
EDIT2: IT TOTALLY WORKED!!
in fact, you can even skip the essence seeds, you just will need to mine more. and if you're going to shot for 10/10/10 I would recommend getting nature essence seeds too, for the magical fertilizer.
I just needed to TNT some iron ore until one dropped, make a manasteel pickaxe head, then a ticon pick that can mine actual iron. you can skip this with more explosions to get 3 and go straight to the botania manasteel pick, but is faster in my opinion.
with that pick just mine more iron, also some nether quarz as it can make the quartz grindstone, and make ore doubling much faster than getting all the grout for a smeltery.
once you have enough iron make the wand and the crucible. for the void seeds you're going to get at least 32 cracked sand, 32 bowls, and 2 world anchors (and 4 seeds, you can use just 3 but it only cost more cracked sand and bowls to get 4). you can get the obsidian with a vat, there's plenty of copper for that.
Crafting the void seeds is a bit tricky since you can't see what's in the cauldron. start by putting the bowls and cracked sand, add 1-2 extra of each in case some aspects decays. then add the world anchor and then 2 seeds, before the alienis decays. empty the cauldron and clean the possible flux and repeat. now you have 4 void seeds. Add 32+ metal nuggets to the cauldron and drop the void seeds. Congrats, now you have 4 void ingots, to make a void pickaxe that can mine everything there and one extra ingot, for a shovel for example.
they repair themselves fairly quickly, but if you're doing very long minning trips pack the manasteel pick too, to give some breathing to the void pick.
you can find lapis and diamond with a abundant concentration near the lava layer. you can pretty much ignore redstone ores.
Also, for fuel for endoflames, other recommendation is to use the very abundant copper and some grout to get youself a tool forge and make a lumber axe. Use the mutandins you can bring legally on tall grass or the gazillon of loose oak saplings until you get 4 dark wood saplins, or fir saplings. I prefer to use the dark oak before getting the lumber axe (dark oak grows fast, lot of wood and not super tall so you don't need to make a long staircase to the top) and once you get the lumber axe use fir.
If you left the production of mana in mass to a bit late, you can straight up use a lava crystal in the lumber axe and get straight up stacks of charcoal.
also, you don't need to make all the t1 seeds to get to make the blaze seeds. you can just complete the coal, iron, tin, and copper essence quests and use the reward essence for the altar recipe. you just need to make the dye seeds for dye essence, and the nether seeds for nether essence for the blaze essences quest.
Keep in mind, for this method you're relying on getting gunpowder early, try to make ASAP a mob farm, even if its small, you can upgrade it later. a recommendation is that if you use a fall damage farm, you use punji sticks in the bottom to kill things that survive the fall, like spiders and witches. you can later put hoppers with punji sticks over to kill and collect the drops.
Another good reason for the mining route, is that you will need wool of bat, and bats are more easily found in underground caves, specially for killing them. if you leave it for the last, try to get fortune in a sword or put lapis in some ticon weapon.
