Forgot the tread size of the four screws that hold the rubber side guards on the petrol tank. BSW thread is twenty but these seem closer to twenty two as I put the gauge to it. Had body filler on it and cleaning that up as well as a few other dimples.
While I am at it, do you have any of those WM20 handlebars left?
The website is not too clear but they make the exhausts for the pre war twins and the megaphones are listed towards the end of the Triumph page. I'll be going there tomorrow, I'll double check.