When I built mine, I used the Revell/Monogram Pro Modeler 1969 Dodge Charger R/T (although I did use the 1968 body as I didn't feel like sanding off the vinyl roof).
Came out alright, I guess. I did use the decals from the MPC kit, and I scratch built the CB antenna. This article really helped me out:
http://di-namix.com/ModelCarFiles/howto.htm