Resin: See this issue if you're using Treecapitator. I do really like the Electrical Age implementation of resin (shown in the linked issue), though, so I might end up doing something similar to make it more consistent.
I see Thermal Expansions Arboreal Extractor (TE for 1.1x.x).
I see no restriction to cover this with a balanced low tec variant. But Resin needs to be unified for mod interaction.
http://minecraft.curseforge.com/projects/the-vegan-option?comment=4
See https://github.com/squeek502/VeganOption/issues/30