Too late I'm afraid... Already have all the parts.
this may still apply if its Raleigh ie_1 3/8" x 26 tpi vs every other Brit, 1.370 x 24tpi ..
Then the UN 55 wont fit .
But as I said, VO has a cartridge BB that Bypasses the threads made for damaged frames, But in this case Useful .
http://store.velo-orange.com/index.p...-brackets.html.