And I've now got the front shifter

It's in quite good condition too.
I've also managed to match the paint colour:
Flamboyant Magenta
I'm currently painting the forks to check the painting process all works.
So now I can strip the frame, but it turns out the original paint is stuck on really well - where there's no rust.
I'd say it's like Imron from what I hear, only 20 years earlier. I think Imron was 1972 ish.
So I've got perfect paint + paint over rusty chrome + paint over flaking chrome + rust.
Using 180 grit emery cloth at the moment so I may be a whille.
Amazon will do 5L of Methylene Chloride for £66 but thats about 4.5L and £60 too much.
https://www.amazon.co.uk/Methylene-c.../dp/B0DL48TP8M
There's also no guarantee it would work.