Thanks John and hello.
Over the weekend I have splashed out on a chassis.
It may not fit but what the hell, twas an impulse buy and it was cheap
The wheel base is 9 ins longer but I recon I can chop that out without too much trouble or insert 9 inches into the bodywork.
The track is about 8 ins wider but I can fit flush offset Minilites if you know what I mean or maybe 3ins wheel arches will do it.
Thing is I've done it now and I'll let you know if it will fit when it arrives and I can measure it. Worst comes to the worse I can sell it on, must be buyers out there, after all, I bought it