to the o.p. - I sent a reply to an email with the questions you asked, hopefully you got it a couple days ago.
the travel queen I bought because I could not let it sit unused is now owned by a good friend of mine. I searched for days on end and could not come up with much info on them. yes, they were made in riverside and now are long gone. they are great campers and not too many of them around. a few are still out there but not that many.
I cant be much help but if you need any pictures of something specific I can get them for you. that camper is in a garage across town from me. that camper is an 8' model.