...and a whole bunch of looking we decided to stay with our trailer. The DW and I looked and looked, spent hours going over specs, making choices on "A" or "C" motorhomes and actually narrowed it down to a couple. We backed off for a while to let it all settle and finally, after putting the pencil to it, decided to just keep the 2011 Keystone Laredo 298RE for a while longer and buy another truck.
We were pulling with a Ford F150 EcoBoost with all the bells & whistles but were right on the edge of being overloaded on the rear axle. We don't pull much, maybe 3 times a year, but now the grandkids want to go and that might put us overlimit on the rear axle with the shell and all the stuff in the bed and I just won't do that.
The amount of time we go just didn't justify a diesel and after a month of looking at axle weights, engines, rear end ratios, max trailer weights, tongue weights and such we ended up with a 2015 GMC 2500HD SLE Crew Cab 4X4 (with the new roomier back seat) 6.0 and 4:10 gears. Put 500 miles on it and pulled the trailer back 70 miles from our hunting lease.
FWIW I didn't baby this thing and just dogged it back home. 8 mpg at 70 mph on a very hilly, steep grade 2 lane highway with a couple of small towns thrown in. Mind you the trailer is close to 35', grosses 9000 and it was loaded. I think the truck will do considerably better on the interstates. Combination driving around the area without the trailer is showing about 14.5, but it is nowhere near broke in yet.....With the 6200 lb rear axle I won't have to worry about the load.....
Guys if you're looking at trucks DO YOUR HOMEWORK! Be sure and look on the door post and read the axle weight ratings. Be sure and figure in your "loaded" tongue weights and carrying capacity and get more than what you THINK you will need.