Thanks for the reply. I agree with your overall method and appreciate the factors that brought you to your decision. I am considering this method as well so I can get the engine and electrical in before dong all the finish body work on the exterior.
When I worked at the body shop, the only time I did jambs separately when I was working on fender bender insurance work. I remember using a special foam product from 3m to mask the jamb area, and used some over reduced clear on those areas to "burn it in"
My follow up question:
Where did you mask the jamb to when you did final paint, and how did you mask it (rolled 2inch tape, special foam, fine line?)