I found EnderIO's stirling generator can use golden power source (force charcoal) to great effect. Lacking forestry, the force engines are still good with lava/oil/fuel & milk (or just lava if you aren't using buildcraft either). You'll get so many force nuggets from an mfr force tree farm you won't need a carpenter for ingots.And now I'm one step closer to dropping Forestry -- only the squeezer and carpenter are left, on the list of things without alternatives. Oh yeah I guess there's crushed ice as well but whatever
Thank you for the update!