I think mine would be Kevin's King of Crushers solid axle custom monster, RC car action.
But instead of the dual brushed....A Mamba Monster, and instead of custom drive train and Revo diffs with a single battery, Savage Flux drive train and battery trays.
If I went this far, I guess I can say now that Ive actually started on the chassis design I just need accurate measurements of the Savage parts. As for the axles, I have no idea where to start. I may email Kev and see if I can get some good tips