Seeing as this (links below) just came out i think i am going to go this route. Its losi, so it will be tuff, and there will be huge parts availability and after market hop-ups too. The only bad thing is that is a RTR and i would prefer a kit as i dont need the servos, gas motor, or radio. I am guessing they might release a kit form in 6 months or so. They do already have hop-up parts available. And the chassis layout will be super easy for a nice conversion. Looks like it could fit a Castle 2028 motor no problem. The dimensions look real nice.
http://www.youtube.com/watch?v=JN7XUFlS5PI
http://www.largescalerc.com/losb0019...d-n-drive.aspx
ENJOY!!!!!