Mike, what made you decide to do a total overhaul vs. just getting it running?
'Course experience might have something to do with it - I got a '72 Yamaha DT2 three months back and I'm still working on tearing it apart. (thread in old school)
I'm just planning on getting it running first, and then taking stuff apart for a really good cleaning and tuning/rebuild.
[I've gotten myself in trouble in the past where I dive into a project way too deep, then never get out; this is my first tear-apart-and-rebuild.]