Ok sorry derailed the thread.
There are a few half ton towable toyhauler but they are EXPENSIVE and you usually need a very new truck with the max tow and HDPP to meet gvwr and payload (when adding passengers to your payload calculation)
Most early 2000’s SRW 2500-3500 trucks have a lower max payload than a HDPP truck does in 17-18 MY. Even the older DRW trucks sometimes have a lower tow rating than a 150/1500 these days.
You really need to look at what your truck is rated to tow, not always about power, stopping and stability is important.
I have been looking for a few years to find my Goldilocks answer for what I want, need, and am willing to pay for.
Look at PACE they will make you a toy hauler, they tend to be a little lighter and less expensive than a travel trailer. It’s not an “RV” but if you’re like my family we eat sleep and carry things in it. We can sit around play board games and watch tv at home.
I’m in the market for a slightly used Ford/Dodge 250 to 3500 (truck brand argument elsewhere) and have considered their 5th wheel and have them convert the deck to a sleeping area and add amenities, it’d be much lighter than a toyhauler and could on paper carry (2) (EDIT: 68” wide) 1000 class SxS and have sleeping quarters for a family of 5
. So I'm almost thinking any purchase would have to be contingent on me loading the sxs and getting up to 65mph on the highway. 
