"2. Also have any of you used monokote or ultrakote on the fiberglass cowl and wing tips? "

I have, on fiberglass and plastic, both, and it ain't easy. The problem is that the covering tends to develop air bubbles in the middle of things, just where you don't want them. I have used a pin, to burst the bubble and iron down again, but it has, on occasion, taken many tries to get it to all lay down.

p.s., Don't forget to wash the fiberglass with warm soapy water first and dry well. Many of the fiberglass parts have mold release left on them, that will complicate life even more.

Les