Cheers Doogy.
Darren, definitely the way forward, now the shell can be taken on and off the dolly without worrying about the paint on the underside. I've also made it so that the full rear suspension and diff can be raised up into the painted shell while still on the dolly. The cross braces are removable for access too for fuel and brake lines etc. Just as a word of warning, I went for bigger wheels than the rotisserie as while great on the garage floor, loading it into the transporter and at the blasters was difficult. 350kg per wheel, braked, swivelling and with bearings all 4 for £65 delivered on ebay.
Thought that wasn't bad.