Grateful for all the answers above and I am now able to add some photos which summarise my progress to date.
First shows the shorter, Sammio outriggers and bracket to support the exhaust system.
Photo 13-12-2014 12 13 22.jpg
Rear lip after major surgery and with slots for the seatbelt buckles.
Photo 13-12-2014 12 12 57.jpg
I have bonded some webs into the top of the shell so that I can bolt these through the frame when the body is in situ. Including a couple at the back which will be bolted through the outriggers.
Photo 29-11-2014 15 20 48.jpg
Side and front webs.
Photo 29-11-2014 15 21 32.jpg
Not a very clear shot but trying to show the major hump surgery that I decided needed to be done.
Photo 13-12-2014 12 12 21.jpg