Document document document the process. Take LOTS of pictures, in case you have to break away from the build for a while.
While you're opening up the engine, be looking at pieces that you couldn't get to unless you HAD to open it all the way up: rear drive seal, chains, adjusters, any and all bearing surfaces, that kinda stuff. It's cheaper to replace it now, while the cases are apart.
There is a tendency to rush through these rebuilds. Take your time with it. It'll save you some aggravation in the long run.
Good luck, and may the wrench be with you.
Luke M
Used to have a 1979 CB750L, sold it as a parts bike, now riding a slightly modified 1984 VT700C. Network/Field Engineer. Central OH, USA, Earth, Sol System, Milky Way Galaxy, Universe.