Tom-Zero on RHOCaR was after some info on Wheel stud length, just the excuse I needed to get back in the garage: the car up on axle stands, remove the rear wheels and trial fit the rear panel.
All seems fine, the sides plainly need some more work to straighten them but that will come when they are riveted to the floor & chassis (note the trolley jack is not holding the car up - all the weight is on the 2x axle stands)
The top curves don't look bad, the front edge lining up nicely with the base of the roll bar and the diagonal chassis member it will be riveted to
Floor...
Spot my deliberate mistake - suspension arms - one side is bolt head to the front, the other side is nut to the front :| . Somehow I need to mark where the spare carrier will attach and dremel out a couple of holes & think about the spare wheel centre mount.
Floor fit & space to fit lights
The floor filler panels are nowhere near the sides yet. Notwithstanding a lot of work to finish the fit, the carpets all meet at the corners, I'm thinking perhaps a canvas liner - under the carpets - might be a good idea to make sure there are no holes in the boot - otherwise I can just see the contents working its way out onto the road through all the smaller gaps.
This shows the space between fuel tank and the panel - I need to check how the fog/reversing lamps are attached before any of this is permanent.
The next job is start drilling/cleco'ing the mountings for the panel. Aidan's blog shows shaping the curve by progressively drilling and attaching to the top shroud, working from the centre - I might try that.