Herb, several points about the windshield. First, you can buy it from the manufacturer, LP Aero (find the P/N for your Skymaster at
http://www.lpaero.com/cgi-bin/Mfr_Ma...ster&Model=337 ). Second, do a Search and you'll find several lengthy messages with important tips. Finally, it is indeed a 12 hr job, but it's really a 6-hour, 2-person job, and you could be the 2nd person. What I mean is that one person mostly holds one end of the windshield as the installer maneuvers it around. My mechanic and I did it together, and he had never done it before. We followed the instructions carefully and, as suggested in those instructions, called LP Aero several times when we had trouble; they were incredibly helpful.
Ernie