I use a 38 foot toyhauler. It's a Holiday Rambler NEXT LEVEL fifth wheel. I tow the trailer with the Viper in it. Holiday Ramblers are the only units strong enough to carry a vehicle (though they will never reccommend it).
I can stay in the front portion of it when on long hauls. Keep all my tools in there and have my own bathroom, air conditioning, TV, satellite dish, CD Player, refridgerator, hot & cold running water, shower, stove, sink, internal & external storage, etc, etc.
I bring my lawn chairs, BBQ, beer, food, or whatever. Never have to get a hotel room and usually park at the race tracks or wherever and don't pay a dime to do it.
Just like home with my Viper in it!