When going from a toy hauler, I originally looked at a bigger toy hauler and the smaller Class C and Super C as an alternative. I tow 6000-8000 lbs which was near the limit of the E450 chassis and did not want be that close to maximum ratings just starting out without knowing future needs. The Super C and diesel pusher Class A had the towing capacity, but all of them were over 30' long with low ground clearance which does not work well in tight public campgrounds or boon docking. I did find a few built on Ford's chassis cab trucks (Host even used to sell one), but most of the capable motor home options approached $200K and were compromising where we could travel.
We ended up choosing a truck camper so our accessibility to camp spots was not hindered and we had sufficient tow capacity for our toys. This was big swing in available room and on board supplies from our toy hauler, but we found the truck camper did what we wanted although our first 9' model with single slide was a bit confining. We started looking at the larger Chalet, Eagle Cap, Host and Lance campers and knew we would need more than my F250, so staying with a truck camper meant upgrading both tuck and camper or looking at the alternatives again. This time around there were more choices in heavy towing motor homes, but none that would work for our requirements. We ended up upgrading the truck first to chassis cab and two years later upgrading to one of the triple slide campers.
If you are willing to flat tow, use a dolly or carry your vehicle on an open trailer, there many more motor homes to choose from by saving the weight of an enclosed trailer (about 3k lbs). However you will still find that 4wd and under body clearance is lacking in most of them. They do have more exterior storage and easier access to the interior via lower steps or the cab, so you need to try a few different models and configurations to see what will continue to work for you.
BTW: We ruled out going to 38' or longer toy hauler for the same reason we ruled out the 30' motor homes - It would have prevented us from visiting places we like to go.
My setup with a crew cab 60" CA truck and 11.5' triple slide camper is under 26'. Adding a 20' enclosed trailer behind me keeps my overall length under 50'. This may sound like a monster to pull around compared to some configurations on this forum, but start adding up length with other options and you will be hard pressed to get that much living and garage space out of anything shorter or stouter.
Host Mammoth 11.5 on Ram 5500 HD
