Hey BigBoomer.. I had a ride like yours a few years ago.. Well.. not quite as extensive. It was an International 4400 dual cab that had a Highwayman rear on it. Lots of storage,etc. The only real reason I got rid of it was because we decided to NOT go full-time. The truck was awesome. I don't care where I towed with it.. 11mpg. Rockies flatland highways, etc. But, problem was.. using it as a 'round towner.. you guessed it... 11mpg
The greatest thing was the torque.. AWESOME. and I never had wo worry about overheating the tranny. BAM!!!!!