"You know you are running GregTech, when wooden planks require 8 nether stars around a dragon egg to craft."
Citizens of Minecraftia, welcome into the GregTech! ... Lower the gates!
Imho in fact best option is to make automatic tree farm using MFR or Forestry for LV and MV with automatic transportation of BC pipes / Thermal Dynamic pipes (which are quite expensive - needs blast glass out of lead, obsidian and tin) / MFR conveyors. Ofc those three mods depends on RF, so you will need a mod which allows convertion of power - like RotaryCraft (quite hard) or Power Converters (quite easy). Personally ive altered a bit configs of ore generation so its a bit easier to find any ores in my world, but still all productions dependencies were the same - ive always tryied to have surplus charcoal just for generation of RF to gather trees. At begining it was quite boring - waiting for trees to grow, then make charcoal out of them, and then make a bit steam to push forward. At least everything depends at your play style - at that you wish just have fun, mid-hard farming or 'tru' GT (as SirSengir noticed that about two years earlier).