Just my 2 cents.....
If you don't know what to buy you may want to try P.P.L. Motor-homes in Dallas, Houston or New Braunfels TX, Prices are very reasonable, large selection of 5ers.
ww.pplmotorhomes.com/used-rvs-for-sale/fifth-wheel?sortBy=price+desc
Do you have a truck? If not you'll need one, You'll also need to know what size
and the weight of the 5er you intend to purchase. The tow limitations of the truck you own or plan on purchasing. The dry weight of the 5er, the loaded weight, the hitch weight limits on the truck, combined weight of both. You really do need to do a lot of research online or in the library about towing, tow limits, weight limits, braking requirements etc.
DON'T BE OVERWHEMED. Just do a little at a time, this week the truck limits, next week the trailer size will be determined by your truck limits. get at less a 3500, or F-350 at a minimum. More truck reduces the white knuckle driving experiences you read about.
https://www.pplmotorhomes.com/used-r...tBy=price+desc
Newmar, Peterson, Excel, NuWa, Mckenzie, Doubletree, Travel Supreme, just to name a few are for the most part really good units. A lot will depend on the previous owner and what kind of maintenance he did if any.
The more time you spend looking the better you'll be at seeing the good & bad in most of the units, The single pane widows, the lack of insulation, the non-heated undercarriage, cheap laminated panels and cabinets are a dead give away.
Check all slide seals, top/bottom and sides for condition.
A cold winter draft no matter how far south you go is no fun..... The propane along with eat away at your pocketbook trying to keep up with the drafts. Most RV lots on long term rentals do not furnish electric. so you'll want a well insulated/good tight unit.
BEST OF LUCK & GODSPEED on all your future endeavors