You might be interested to know that there is a full-timing couple (not
fiberglass, tho, but we can let it slide) that keeps a blog about their travels with their 3-legged dog:
http://www.liveworkdream.com. It's a fantastic website, and one that's been in my bookmarks folder for a while now.
They also maintain an online community for "tripods".
They write about traveling with special-needs pets, and their story has also been filmed for--I believe--Oregon Public Television.