I am happy to report that I received the Oliver
window cut out from Steve today.
really makes a strong, thick panel. Gelcoat/Fiberglass, another thin layer of what appears to be a white insulation material and an inner layer to seal it all in. More than enough for my repair.
Almost 1/4" thick as compared to the original 35 year old Trillium
Gelcoat/Fiberglass at about 1/16" thick.
It's interesting to see how this thread wandered all over the highway from the original post, but still contained a lot of valuable information. Kinda like a trailer that needs more tongue weight!
It's what makes the Forum work. I know I have been guilty of wandering off topic many times!
Thanks again to all!