I'm pretty confident now, everything is ready. Just a few things niggling in the back of my head...
1. how do you get the digi rev counter to work
2. will all the anciliary sensors work (oil pressure etc)
3. there is a wire labelled tacho on both the main MBE loom and the smaller dizzyless to dizzy driven adapter loom, the later being just a white enclosed male spade connector.