Yes
most all bumper pull travel trailers should be under 4 thousand pounds
Yes you can. You can pull doubles and triples. You can pull two 48 trailers and two 53 foot trailers. You can pull three 48s, but you cannot pull three 53 foot trailers.
This website has an excellent selection of Lightweight Travel Trailers: http://traveltrailerdeals.com/Travel-Trailers/lightweight-travel-trailers. If you are looking for a second hand one, Ebay and Craigslist are good venues.
Yes, AAA will cover travel trailers if you purchased their specialty insurance for it.
No
One can find information about Airstream travel trailers on the official Airstream website. There one can find details of all of their trailers and the prices they are sold for.
Is or WAS a manufacture of travel trailers.
Fleetwood
TRAVELAIRE
indiana
Crashtoys.com