Brian, that looks just brilliant ! I envy you in being able to contort yourself enough to get into all those nasty places down the footwells !
Once aly is polished up to your satisfaction, I have found that a 2-pack product called Glisten (from the POR-15 people) is just magic. It can be brushed on & is so good at self-levelling that you can not pick it from a sprayed finish. Talk about tough - I did a test piece & after 1 week, replicated the demo I saw at the dealer's shop - whacked it with a ball-peen hammer. Absolutely no cracking or peeling - it just stayed there, following the hammer dents ! It also withstands heat really well - I have seen pics of a cam cover on an Alpha which looks as good as new after 10,000kms.
Just be sure to use their recommended surface cleaner first, then I am sure that you will not be disappointed.
Nice work !
Kind Regards,
Peter D.