I too would look for an L size motor around the 3000 kv range to use with that 3s pack. Especially since you'll be running 2.2" rims, which is like gearing up a tooth or two because they are larger than stock.
If you get a Feigao (or equivalent) motor, shoot for 35k rpm max. If you get one of the smaller Neu motors, you can easily shoot for 40-45k max rpm.
My crt.5 had a 10l running 3s lipo. I had jato rear tires on it all around and ran a 20 tooth pinion. Close to 40mph with that setup and it ran well. Plenty of power, but a few holes in the body to get some air in will help the motor and esc temps. I have also run a 9l but do not see too much difference. If sleebus will come off his motor for a good price you should go ahead with that.