Another thing the OP should keep in mind: Depending on your state of residence, you may have to deal with additional licensing and registration requirements for larger rigs. In a number of states, if the GCWR (truck GVWR plus 5r GVWR) exceeds 26,000 lbs., then special licensing is required. Other states like CA have different guidelines. Best to check beforehand.
For some folks, the licensing hassles are enough for them to pass on a 1-ton SRW or DRW. As a plan B they end up going with a 3/4-ton truck with a 10k GVWR and a 5r with a GCWR less than 16,000. If you happen to reside in a state where you can drive any RV, regardless of the GVWR/GCWR with a standard Class D operator's license, then, of course, not an issue.
Just something to consider . . .
