The best way to get TQ3's is to go to your LHS and ask if they have any in the back available.
The Traxxas TQ3 comes with the REVOS, E-MAXX, T-MAXX, etc.
Some buyers upgrade the radios/recievers during purchase of the rigs to get a better deal. So the LHS just takes TQ3 out of the box.
I have purchased 3 of my TQ3's this way. All came w/recievers for $30.
Modding the radio cost about $4 for the return to center toggle switch at radio shack. 10mins to mod.
Good luck