Atomik if you can wait a few months the V One RR Evo is due out. It has some advantages over the RR, lower cg, steering srevo lays flat on the chassis, and a better front roll centre. But if you can't the V1RR will be a good choice, the only thing I would change is the standard servo your thinking about getting. I'll think you'll want a stronger servo than that, I run Futaba S9402 for both throttle and steering, these are coreless servo and are resonable fast and have a good torque rate. Apart form that I think the package you've pick out for yourself is quite good.