Thanks for that Tony. Unfortunately, that's exactly what I thought.
Hightower: I had another go at it this evening, and it simply refuses to fit. I was trying to line up the bottom banjo with the middle holder (I don't have a top banjo, Muggins seems to have lost half the hardware for this bike before I got it
), and it simply refused to go. The barrels and head are replacements from Deefer, the sump is original. I might see if I can beg a few off Deefer, and see which one fits best.