roof replacement panel

[jott_06]

Ok i have a 68 GMC and it has the well known rust on the inside of teh cab along the windshield. I ordered the replacement panel for it but i was wandering if anyone has installed one of these and how difficult it was and if anyone has pictures from when they did it. I have been doing body work for 4 years and i have worked in a body shop for 1 year so i have some idea of what i'm doing but i've never had to do much panel replacement this extensive so any suggestions will help... thanks