The kb45 motors have a 6mm shaft, and a 30mm bolt pattern tapped for m4 thread screws. So you would need custom pinions, and a new mount for the flm savvy. And your battery choice may not be enough, depending on gearing. Get a pack that can do 100amps cont.

ARRRGHHH... I really don't want to deal with all of that. Any motor suggestions that will give a stupid amount of torque?

I got an idea-
Mega aCn 22/45/3 $175
MGM 4032 $70 (can't tell you where)
12s A123- $200 something from Battlepack.com
Good? Bad?

Well, you can turn the shaft down to 5mm ,and have the end bell drilled and tapped for the correct bolt patter/size.

Otherwise a 1515 neu would be killer?!

From what I hear, the 22/45 are a cheaper equivelant to a 1515.

Ok, I have no experience with a mega, but people do speak highly of them.