Base design question...

[Kalagorn]

Here's the space I dedicated to my mods in past games:
*Thaumcraft: two 19x19 rooms (21x21 on the outside). It may look like you can do with one at the start, but that will change.
*Blood Magic: at least (!!) two 19x19 rooms (won't be enough for the L6 altar, though L5 is a close fit). All the rituals, the automated alchemy and the spells take up a crazy amount of space.
*AE2: one 19x19 room, including some auto-processing machines if their number is low.
*Botania: one 19x19 room, though this may get a little cramped if you want to include the Gaia ritual.

Each room is circular and has a 24 block diameter (on the inside), and each tower has two floors. There are 4 towers and 1 large tower in the middle which I'm planning to make around 25-30 diameter, which also has 2-3 floors. When you say that you used 19*19 measurements, do need a square or is a circle fine?

 

[Kalagorn]

My last trees were just to one side of my base, but stretched well out of view distance when all was said and done. Normally if it's long enough to need a railway, it's going to be out of view distance. My Thaumcraft base for example, was way up on a mountain while I was on some nearby plains, and thus had a train running to it.

Those courtyards would be enough for the smaller trees. The bigger ones will want more space, but the breeding of the basic trees would fit.

It sounds like you need a lot of space for bees/trees. I think I'll build a railway in the future like you suggested, and use the courtyards for other things.

 

[Ieldra]

Each room is circular and has a 24 block diameter (on the inside), and each tower has two floors. There are 4 towers and 1 large tower in the middle which I'm planning to make around 25-30 diameter, which also has 2-3 floors. When you say that you used 19*19 measurements, do need a square or is a circle fine?

A circle is fine for everything but Blood Magic altars, which need a square of up to 23x23 I believe. Personally, I find it much harder to fit things into a circle compared to a square of equal surface though.

 

[KingTriaxx]

Bees themselves are fairly compact. Tree breeding you want to give them the maximum possible space for leaves, to allow for maximum cross breeding opportunity.

 

[Kalagorn]

I was going to make them square, but I changed my mind because they looked incredibly ugly. I never really wanted to do Blood Magic, maybe I'll build it a hut somewhere away from my base.