Sounds like a combination of the Lindberg kit, and maybe a Revell 'Cuda chassis could get a good result. I just got done emailing Charles at Texas 3D Customs, and he says that a Chrysler small block is in the works for this year. Still need a source for the wheel covers. I'm not sure of the body changes from '72 to '73, but I'll do some research.
P.S. awesome forum, I'm on 3 or 4 different forums for all of my hobbies, and this one is the best.