I don't want to see the "ultimate end game thing" of a tech mod to use VANILLA nether material.
These materials you listed are nothing more than primary resources. And it cost nothing more than a bucket, some water and lava, one piece of flint and iron to go to the nether, all of that can be obtained the first minecraft day.
These Nether material should be in the very first step. Or maybe the second one. But definitively not the latest.
And any tech mods that can be played with vanilla resources only is guarantee to be horrible from my point of view, since vanilla resources are extremely limited.
Things like quartz, netherrack, etc, are quick and easy to come by.
Soul sand, harder.
Nether wart, harder still.
Blaze rods? ... Can be hard to get.
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RoC's jet fuel consumes magma creme and blaze powder (plus other stuff), as well as requiring a ghast tear as a catalyst. And that's one stage below the end-game. Jet fuel powers the bedrock breaker, and powers a friction heater enough to cook that bedrock dust to make bedrock ingots.
RoC uses only vanilla resources. Still think that it has to be terrible?