Seems that you want to travel with it rather than sit in a RV park for weeks on end.
In spite of it sitting on a Lippert frame our 2007 Alpenlite has held up to over 100,000 miles, 1500 plus nights of use which has included THREE 14,000 mile trips to Alaska. No, it is not for sale yet but there are some good Alpenlites out there which are. Best ones are 2000-2005 models. Well made & not on Lippert frames.
What is important for long term travel is a functional galley with lots of counter space & large freshwater tankage. Aplenlites can carry 100gal freshwater. These are not lightweight trailers so a dually is almost a must have for a pleasant towing experience.
