Muk, once I sell my beetle I'll have enough money and a garage with a pit and all the tools to do it. The things I'll need help with is retaining the structure while welding and what order to do it in and reconditioning parts basically. Also I think you should keep the original colour but with silver wheels of some sort.
is the beetle a classic one, great that you have a fully fitted workable garage to hand, half a job done,....ask away when you got a mini, I would go for any of the ones you mentioned, the innocenti is of coure a preferable choise but hard to come by I think. Keep us updated,.... and enjoy the ride on this tread, Check out Project 850X above, my last project.