Originally Posted by Bigblue12v
We recently got a Ford Excursion tow rig.
... It's a 2005 Dutchman (aka junkman imo) 32' ...
If the X-car is a diesel, you'll probably love it. If it's a V-10, then you'll probably cry about the MPG. The only problem with an X-Car, especially if it has the very heavy diesel drivetrain, is its limited GVWR - very easy to be overloaded over the GVWR when on the road with a family and towing a loaded RV trailer. Same problem as most full-size SUVs.
Dutchman is the bottom of the line "economy" RV from that company, but there are lots of them around here. And many of them are more than 10 years old and still going strong.
If the only real problem with that Dutchman is the soft spots in the floor and you can get it for less than $5000, then you can probably replace the sub-floor in the high-traffic areas without too much effort or time.
Building your own toy hauler starting with cargo trailer would be the best way to get what you want. But it will probably cost a lot more than you think, and it will require a lot of midnight oil.
An alternative might be to find an old race trailer with LQ. Most of those are goosenecks, but there are some "bumper pull" LQ race trailers available. Here's a link to a new one:
2014 Vintage 32' LQ Tag Race Trailer For Sale
On edit: Here's a link to a used one: