Be ready to travel a distance and do a lot of research now so you can launch when you see something that fits. Once a trailer is publicly for sale
, it is often sold faster than you can do the research.
The other piece you need to consider is air conditioning
. If you can live without it, you will have a lot more options.
As you look at smaller trailers, beds tend to get smaller and smaller, and toilets disappear.
As far as your truck, I am from the school where I would rather have more than enough tow vehicle than one that is close to its limit or marginal. Been there, done that, won't do it again!
Towing where you can go a normal speed up a steeper grade is nice. So we pull our 17 foot Casita
with a F150 truck. And personally, I prefer a trailer with brakes
. Ford makes a nice integrated brake controller that fits right in the dash on their newer trucks (mine is a 2010).
Although FG trailers do not have many of the issues that stick built trailers have, there still are some things that tend to have maintenance issues. They do hold their value great, so be ready to pay a fairly big price for a twenty or thirty year old one!
A-liners have issues too. I have friends that have two A-liners. They store them outside, and leave them opened up as they report the roof panels/skylights leaking if they leave them out in the weather folded down.
Also, be careful with bed sizes. In the RV world, twin, full, queen and king size often have little in common with standard bed sizing. For example, the twin beds in our trailer are a "whopping" 23 inches wide. A traditional twin bed is 39 inches wide! So just because a bed is called full sized (or whatever) doesn't mean it is that size. I have seen a fair number of RV full sized beds that were closer to a standard twin size than a traditional full size. Realize that on a 13 foot camping trailer, the tub is only 10 foot or even shorter. If you want to fit a dinette, a toilet, stove, frig and full sized bed, you quickly run out of space. Lots of compromises!