Im thinking that the profitable part would be to make up say 10 new Aluminium Chassis with the floorpan and rollbars all done as part of the chassis.
With the brackets for suspension and diffs and engine mounts and cross bars all set up for say an LS3 V8 to go in.
Then just fit up one of the chassis with diffs and a driveline, and some panels so its about half built but has the tyres on and looks all but done for photos.
Then set about selling off the other chassis that are made up, because they can see it as a Build platform for a new Kit 4x4.
With the concept showing on the half done car, they can plan how they would build theirs by buying the chassis.
As a simple concept, just getting the chassis made for say 2k each if I got 10 done at once, then sell them off for 7 -10 k each.
Not a big profit in this explanation but the profit on those chassis would pay for the one I build for me .