I have used Boeing primer before, the Old DP-40 that still had lead, and Variprime over the years, now with the clean air act BS I cannot even get toluene locally. Top coat I liked was PPG Aquapon, it was used as a chemical resistant pant, now no longer made. The new thing is PPG high solids epoxy in Gloss white which I have to buy in Idaho. Most other top coats comes off with the glues used for fabric. I am also sticking with Polyfiber, and polytone, they are tried and true products that are easy to repair. When it comes to stripping the paint, I take it to a local guy, he uses a mix of different medias and he does a lot of airplane parts, most tail feathers are $20 each. I cannot do it for what he can. I dont have to do any clean and it saves the customer money. Good luck, Tim