Ed,
I have used one of those paint removal devices that attaches to a drill. Seemed to work pretty well. We were able to do that roof section in about 30 minutes or so. My best friend was over helping me tidy up some wires (in my basement/garage) and after we finish, he just grabs the razor and just starts going to town (which surprises me because he isn't a big car guy) and it came off pretty easily. I might take it outside and get the drill out and finish it today. By the way, he thinks I should paint it orange w/ some type of black stripe(s) I told him he can paint his that color!