Did you or are you going to make any new parts? The tin-work looks pretty agricultural, such as the light bracket (top photos, thread 22) would be dead simple - so presumably will other similar pieces, I made plenty of new parts such as bracketry etc for my 1969 Mini Cooper S plus stainless odds and sods for my Commando. Mind you, the Cooper S, being a BMC product (Bloody Midlands Crap.....) was pretty agricultural, basic, paint free etc etc anyway. To be honest, I assembled them with a view to later maintainability as opposed to rigid originality and used stainless UNF nuts, bolts washers where I could/possible PLUS modern jointing compounds and grease/oils. Just painted the visible exposed stainless parts over.
Mind you, I made some real howlers too....... such as cleaning out the front subframe tower threads with a BSF tap instead of UNF (26 -28 TPI!!!!). Took days to understand what I'd done wrong but Mr Helicoil came to the rescue with his thread inserts! Anothger good tip I learned when doing my wifes Dolomite Sprint was never, ever, never, under pain of death, have metal to metal contact when fixing stuff to the bodywork. Always have a thin neoprene membrane between then squeeze up. They used to use a lot of fibre washers and gaskets! I mean......... water absorbent fibre.....!
Great to see and don't forget, those photos in an album are worth an extra £2000 on top of the price when you sell it. That's the only way the buyer can see what's not festering under the shining (or matt in your case.....) paintwork
We had a bloke on the forum restoring one of those tracked motorcycle things a couple of years ago. There's a project!!!!! Wonder where he has gone now. Sorry to have gone off at a tangent