GaryH - I think I will be carrying out repairs using both fibre glass for some & welding for others.
More details in the post below…
Possible Boot Option:
One big advantage of using the rear section of the Spitfire is the possibility of having useable boot space.
This is how
Tribute "next door" approached this on their A352 project …
This boot area also allows the Spitfire floor & wheel arches to be joined to the new bodywork from within.
So I would cover / fill in all the holes / gaps in this area with extra fibreglass when doing that work.
It would also provide access to the silencer mounting points, otherwise, captive nuts would be needed.
However, this A352 had a huge boot lid, as the optional D type hump & tail fin were not fitted.
I would need to start the boot lid between the humps & expand out to full width at the bottom.
I'd copy their idea of taking the whole bottom section out & mount my number plate & reflectors on the lid.
The boot would also provide great access to the rear lights which would also be protected from the elements.
As usually, this is an impression, the edges would need to be gentle curves, not sharp angles.
Build Options - Latest Thoughts:
The boot option above is one reason why I am happy with the decision to buy the 2nd hand Spitfire shell.
I got the whole tub for the price I'd have paid for just the rear section, so I have nothing to lose really.
I know I still have to tackle all the metal work underneath the rear section, another big job.
But so far, the cleaning up, rust treatment & painting of other sections of the shell has gone well.
In fact, the Easter weekend did show what could be achieved by spending a chunk of time on the car.
However, it also highlighted just how long some jobs can take, so I must remain realistic about my options.
In terms of my priorities, I think being able to use the bulk head must rank ahead of using the whole shell.
So I will remove the driver's side sill in order to repair the driver's side bulk head (see previous post / photos).
I'm sure that repairing this section may require some new metal to be welded in to strengthen the area.
But I can't really assess the work required until I can see the extent of the rust damage behind the sill.
At this point, I think I must face the facts that the "fast build" option is now effectively dead in the water.
I'd previously posted a picture of the extra bracing
Pantoune used on his Spitfire shell for his A352.
But that bracing was in
addition to the original Spitfire sills that look both solid & firmly attached to his donor.
It would take me far too long to come up with something that would work as well as the frame I already have.
Whereas, my
Frankenstein option just needs me to join the Spitfire bulk head to the rear Cordite frame.
A Shell Of Two Halves...
Abandoning any thoughts about using the whole shell will actually make my life easier in other ways too.
If I cut the shell into two & remove further surplus sections, I should be able to carry it through the house.
Once in the back garden, I can put up the "Circus Tent" & have somewhere to continue the preparation work.
It would also give my wife her parking space back, once I've cleaned up the mess I seem to have made there.

It will also be a lot easier to turn the front & rear sections over to work on the underside if they are separated.
Based on a comment
Mister Towed made, I will need to do some preparation work before I start cutting.
He mentioned the flex in his bulkhead when it wasn't attached, so I will bolt some box section to it first.
I'll put one section across the mounting points at the front & another across the back which should help.
The last thing I want to have a look at before cutting the shell in two is the Spitfire’s main floor sections.
I’ve got new metal lowered floor pans, but if I use them, then I will probably need to change my seats.
My seats are inclined at the back when the base is horizontal and a sloping floor does exaggerate this.
I have a few ideas about a possible solution that I need to check before going angle grinder crazy!
As always, lots to think about, so until next time, take care, Paul.
PS
With one thing, or another, I'm not going to get a chance to work on the car for over a week or so.