Other day we were on vacation and we were six floors up. Our stairwell overlooked the parking lot. There was a Tundra extended cab and a short bed ram 2500 quad cab sitting side by side... They were within inches of each other in length.
IMHO...you lose nothing size or maneuverability wise with a 2500 short bed... For your rig..a 2500 is an ideal match...fun fact...you may actually negotiate a 3/4 ton cheaper or the same price as a F150...depending on your trim level.
Another FYI...based on experience...
Our 32 ft TT was 4,900 lbs "dry"...we never towed with the water tanks full either...
When we weighed the camper it was nearly 7,000 lbs. No water in the tanks...
Many times that dry weight doesn't include propane, dealer add on options, drapes, etc Etc...weigh the camper ... Then you know.
Thanks!
Jeremiah