[larrybuck]

My current trailer: the Holiday Rambler Alumilite has the Alaska insulation package which helps immensely to keep you warmer in winter, cooler in summer.
My trailer is conventional hitch, not a 5th wheel. I can easily tow w my suburban.
It is still very roomy for me living alone, because of the dining room slideout.
Since there are just 2 of you, plus the dogs, a non 5th wheel may be adequate.
Buy quality, get new enough as many parks have year requirements for how old it can be.
I got my '97 1 1/2 years ago for $7,500. in very nice condition. Almost any veh. with a hitch can pull it. I am set here but my vintage very close to some parks cutoff point.

Get as many slideouts as you can. You don't want to feel like a bug living in a jar.
Many parks have goofy rules. Mine doesn't allow skirting because it looks too permanent!

Some brand new trailers are so fancy that they are set up for 50amp use. Most parks are not anywhere near that any usually are 30 amp max.

It takes some extra thinking but do able. When I cook in the microwave, I temporarily turn down the heater to its lowest setting, plus turn the hot water heater off, just until my tater is done! (smile) You can do very well, cheaply, w some thinking, and patience. Just do your homework to get one already well insulated. I sure hope that this helps you some.