I have not had fingerprints since like age 13. It actually caused a serious problem when I tried to get my concealed carry permit. They rejected print cards from my local P.D., two county S.O.'s and from Tulsa P.D.. I ended up having to drive to OKC to have the O.S.B.I. try and print me. They finally admitted I just didn't have much of a print to try and take.
Are you positive you do not want to yank your front and back glass before painting the cab jambs? What will you do if you get them out and have some rust in those pinch weld areas that you need to fix real quick? Might be a pain to come back and do that and have to worry about your interior being in the way/being damaged/getting overspray on. Just food for thought.