I've found that MultiMC doesn't always copy forge over but if you simply go into the FTB folder and find the instmods folder you can get forge from there.
Redstone engines do not provide enough power for a quarry, they produce something like 0.1 Mj/t, which is not nearly enough.
I do believe if you craft up some circuit boards in a carpenter, and some electron tubes and a soldering iron in a carpenter/thermonic fabricator, you can use the soldering iron and it will open up an interface where you can place any of the 3 circuit board types, each able to hold more electron tubes (up to iron), each giving different upgrades. I think it should tell you what each do in the interface. I mean, I've only ever done it once, and I've just come over from technic, so don't quote me on this :/