Thank you Janey,
Yes, I spotted that thread too but like you couldn't see the pictures. I think I'd like a bit more detail too, if I can get it. I don't think I want to take the paint off at this stage either. It may well need a repaint anyway but I'm trying to learn how to do what I'd do on a really nice machine. If you found it fiddly it looks to me like there's a bit of a need for this kind of info out there... If I end up mastering it on my own I'll document it somehow.