Moss from BoP does spread. If you need more moss, place some on a wall, and come back later to harvest. Take the moss from BoP and make mossy cobble, then take the moss from the cobble and turn it into TiC moss. Of course now with TE and the liquid transposer, the BoP part can be completely bypassed.
As far as the RP replacements, MFR can handle quite a bit. For block placing, there is a block in Thaumic Tinkerer that can do it. It uses a golem animation core and can replicate a left or right click. Be it tool or weapon, or just a block. It's a great way for converting blocks of mud from the MFR sludge boiler into the mud balls that be made into bricks by pairing it with a block breaker.
As far as the RP replacements, MFR can handle quite a bit. For block placing, there is a block in Thaumic Tinkerer that can do it. It uses a golem animation core and can replicate a left or right click. Be it tool or weapon, or just a block. It's a great way for converting blocks of mud from the MFR sludge boiler into the mud balls that be made into bricks by pairing it with a block breaker.