Thanks all, job done. Took about 1/2 hour for the chassis to fall off the body, helped by a big blower heater. It takes about 4 hrs to strip the car but depends how rusty all the bolts are. The current project took about 5 hrs as a lot of the bolts had to be cut off which also means drilling them out and retapping. Next question for all the experts, what do you use to reseal, how about VW Beetle foam seal or does it need the strength of being glued together? for the rust in the triangular bit behind the front wheel I just cut out the sill, stuck in a piece then tacked back the sill, not pretty but it is a temp measure until a proper rebuild when the other 2 are finished ( and my daughters Beetle and my Scimitar!!)