Sounds to me like you are being just tooooo selective in what you want.
As I am sure you have seen, BigFoots in the U.S. are scarce and wanting a specific floorplan, one that is scarce in the first place, only makes it more difficult. Such a trailer may not even exist in the U.S.
I would suggest also looking in the Canadian offerings in <<<fiberglass-rv-4sale.com>>> as well as in the Canadian Kiji(?) ads and find out how to deal with importing one.
Another possibility is that there is a BigFoot owners group, where trial membership is free, where you might find either a trailer, a lead or a thumbs down to what you want.
There is a fine line between going with something else.... or never going at all...