I think a MH and 28 footer is the way to go. I've got a 28ft. Halmark tag which i usually tow with a duelly crew cab. I also bought a 35Ft. Allegro which i thought would be a good tower. Big Mistake, when i started looking at how much work had to be done to set it up for towing i was amazed. It got tag wheels, and the chassis is weaker than my duelly. I have a friend who tows with a 34 ft. and the only reason he bought it was for comfort for his wife who goes to all the races but rarely comes out of the MH. He hates it because of the problems with parking, getting gas, etc. It's like a train going down the road. I'm trying to sell my 35 ft'er and buy a 26 ft. that's available in my area. I for sure (if i can sell my 35ft'er) will never buy one over 28ft. for towing.
JMO
Zip.