My opinion...
If it was me, I'd forget the toy hauler entirely. The reason why I say that is because I've tried various combinations over the years and this is what I have now and will keep:
I have an F350 Ford 4x4 turbo diesel 4 door long bed. You can have any brand, Fiat/Dodge, GMC/Obama Motors of Ford, it don't matter so long as it's a 3/4 ton or better. 2 wheel drive will suffice if you don't use the truck for other purposes. I do.
I have a Lance slide in camper, it's fully self contained, has plenty of headroom (I'm 6'1" and I don't eel cramped). It's air conditioned, has a full bath (no tub, just shower, you can actually get one with a tub), full galley, range oven microwave, double sink, 3 way refrigerator (digital), hot and cold running pressurized water with filters (has a 60 gallon fresh holding tank plus city water hookup), full toilet (fresh water flush), solar panels on the roof, full dinette plus a queen sized bed that's really comfortable. I bought the Lance because it has a full, one piece aluminum roof and FRP sides so it's maintenance free plus it has the xtra insulation so it's easy to cool and heat. It also has a big side roll out awning (to sit under and bench race or work on the bike) and on board generator (for 110volt power, anywhere).
Then, I pull a 3 place motorcycle trailer behind the camper. my trailer is open but I have a friend with a 3 place enclosed that I can use if need be. With the big pickup, I can put in the camper and pull the bike trailer or our 4 horse Moritz no problem.
The nice thing about my setup is the various combinations. You have the truck for using as a truck, the camper and truck for when you don't want to be a participant just a spectator, The whole outfit for the other times, You can take the camper and set it off and use the truck separately with the camper as your base station and you have a go to town vehicle without hauling a camper (Lance is the only camper certified for use as a stand alone without the truck under it.
I keep the camper in the big barn when I don't use it, the truck is a farm vehicle because I can pull the trailer with my wife's Ranger or my Tracker.
If you get a toy hauler, the amenities ate limited, even in a big one, the size makes parking a *****, you still need a big pickup or SUV to pull it with so why not get the big pickup and a slide in and have a camper you can tuck away somewhere and a trailer that you can pull behind your daily driver if the need arises.
I know a number of people that have toy haulers that want to sell them because they are a ***** to park, hard to handle on the road and just don't get much use.
You could always buy a Prevost and put a trailer behind that. A custom prevost is only 3/4 mil and they have ammenities...plus 500 horse turbocharged DDEC3 diesel power or Caterpillar, Allison 6 speed automatics and will cruise over 100 on the road......I know, I know someone who has one. When you aren't fiddling with bikes, you could play rock star.......................
I might add that the one thing that is a big turn off on a toy hauler is that you can't seperate the 'toys' from the living quarters, even if there is a wall, the stink from oil and gasoline and grease and solvents permeate the living quarters, your clothes, washing and drying towels, even your food. That is the main reason why people don't like them. Nothing better than stinking like a garage all the time. The smell is fine on race day, but it gets old 24/7, real old.