u can get a tamiya TT-01D drift kit w/ pretty decent upgrades for about $140 new. that includes drift tires, ball bearings, oil shocks + it comes w/ unpainted body, esc & motor.
u will need a radio, receiver and servo + battery pack[s] and charger. not sure if they have an RTR or not, but u might check around. the TT-01 is a great basher and is easy to get parts & hop-ups for, but it isn't the most sophisticated car. i've got one and love it.
the kit isn't hard to assemble; i built mine in a few hours and had never built a kit before, so if u can keep a nitro running, u can certainly build it ok.