Another late update, just gave up documenting the amount of rust in this car.
The list is.
New boot floor
Rear panel under bumper
Rear lower side panels
Rear shock towers
OS Rear suspension support, and stiffeners
OS Outer sill + patch repair inner sill
NS Rear suspension support (TBC)
Inner wheel arch OS and NS (TBC)
Rear window surround
Front window surround (TBC)
Driver floor needs seam welding from below
A post repairs (extensive) OS and NS
Rear of front panel both sides
Front chassis support member
Front panel below bumper - minor welding (TBC)
Scuttle panel welding.
Strengthening chassis supports
NS lower wing repair
Bonnet repairs to correct mistakes
Small repairs to door (TBC)
The good news is that the welding is 90% complete and most of the rust has been banished. The exception is the door and bonnet. That will come soon. The BMW has now been put back on the drive to make way for the return of my spitfire that needs the garage space. The collection of the photos below shows some of the repairs.
Rear end, 95% of the rust is gone and bear metal etch prime red or rust neutralizing paint applied.