Bigfoot's biggest in molded 'glass (for "regular" production) was a 25 footer.
They also made a beautiful 28 footer in molded glass as well (called the Silver Cloud) - and there is one of them for sale
right now on the "for sale" forum of this board. There were VERY few of those made - I cannot recall the exact number of them, but it was something like 13 of them. They are considered to be the "holy grail" of fiberglass trailers.
also made some 'glass trailers that are NOT molded - they are galss composite panels with seams etc. I looked at one of those a few years ago. (a 24 footer). Personally, I passed on it, but many folks love it. It had the very BEST floorplan I have ever seen in ANY travel trailer! If it had been molded
glass, I'd have bought it in a heartbeat!
There is also a 25 foot Bigfoot
listed in the For Sale
section of this board as well.