I built the Page Gee Bee Z many years ago. I actually bashed the model for an improved scale look. I'm not sure, but I believe I purchased glass spats from Stan's Fiberglass. I'd have to pull the invoice.
The kit was wonderful to say the least, but I must add that my improvments have made it look more scale.
Maybe one day I'll finish it.
Charles
www.cfcgraphics.com