How about an s-10 frame? Its small and about the same size as the car its self. i know it may sound noob and dumb but I have herd the s-10 frame being used in alot of custome rides. Im sure you could find a decent frame from a j/y that isnt fubr and pull the cab and bed off if it isnt done already. I just see alot of cars that are out of this world and if these ppl put that kind of money into there ride Id assume anything is possible..