Removal and install of rear windshield 65 Barracuda

My car is going to body and paint next week. I really want to remove the rear windshield and replace the seal and my paint n body is a bit leary about doing it How hard is it really?
I'm a pretty hands on guy and can do just about anything needed to a car Just check out my build in my signature! but i don't do body n paint Nope nope!
I wounder if it's something I could do or is it a "PITA pay and have some one else do it"

Of course my only fear is breaking the glass....