as far as the motor goes, mainly depends on gearing, i would look at what others have done with their T-Maxx BL conversions and go from there. personally i like lower KV because they have a bit more torque and its easier to gear up if you want more speed. to me it seems lower kv is more stable...
ESC's are one thing i wouldnt skim out on, Goolrc are kind of cheaper knock-offs/clones to my understanding, and a clone of that would have me skeptical, motors i hear people have luck with Goolrc etc, but i haven't seen to many that still run their escs.
i recommend hobbywing ESC's and get a...