For a reference pointer: A 20 coke oven run system produces more than enough Charcoal to run a 36 solid LP boiler (running a hp on charcoal is a tad masochistic imo) and so far ive also managed to run a 27 LP liquid boiler from that same coke oven setup, im making way more of both fuels than i need.
Tree harvesting?
Go the thaumcraft route, its practically maintenance free.
make sure to set your coke oven input pipe to "round robin" mode, it will keep them all working and a barrel to buffer your logs will help keep everything stocked up if you experience a sudden surge in requirements - in early game rubber trees are the best, this way you will also have something cheap to make torches with.
Tree harvesting?
Go the thaumcraft route, its practically maintenance free.
make sure to set your coke oven input pipe to "round robin" mode, it will keep them all working and a barrel to buffer your logs will help keep everything stocked up if you experience a sudden surge in requirements - in early game rubber trees are the best, this way you will also have something cheap to make torches with.