I did this job once but it was a while ago. I bought the kit from Catalina Direct. I had to be a while ago because I don't remember much about it other than I had a very hard time fitting the glass windows back into the frames with the new gasket. I remember the gasket pinching and stretching and the sealant making a mess. Also doing a search this morning, as an option I see a lot of people using butyl tape to seal the frame to the cabin. I have a 1977 C30. Has anyone done this job recently with any tips to share?