Lava can be pumped directly into a geothermal with waterproof pipes (1x cactus in an oven = 1 Cactus Green. 1x cactus green in crafting grid = 1 pipe waterproofing). Connect your geothermal operation directly via liquid pipes and negate all the bucket hassles!.
Wait... biofuel? I thought Forestry was not included in Tekkit due to an explicit incompatibility built into Forestry because the mod author was tired of them distributing his mod without his permission.I had read about Ogres being able to destroy anything besides marble brick so i built my tower with it and was glad to have as one was doing a bang up job of flatting my lawn (and the animal pen, Machine shop, interior walls...)
Currently the top level of the Tower is a makeshift cacti farm to make enough Pipe waterproof to run pipe everywhere. And i have a small Cane farm under ground to produce Biofuel.