Thanks for all the input! Got there thinking okay, we're getting the F350 DRW which was fine. Steering a truck that size was a bit loose. Dealer though just got in an F350 SRW Lariat Turbo Diesel 6.0L 4WD and we chose that one. It will have plenty of payload cap. for the 5'er we want down the road and def will tow our ultra lite TT with no problem with plenty of spare weight room based on the truck weight to GVWR. Felt the SRW drove better but it came down to the SRW fitting our needs combined with having more interior upgrades and appearance seeing the dually looked solely like a work truck.
Fayne and Bonnie
2016 F-350 4WD Crew Cab 6.7 Diesel SRW
2013 Keystone Outback Sydney 5th Wheel 331FRK