Congratulations and welcome to the no-spark plug world! You will absolutely love the power/torque that the turbo diesel gives you. With a good WD hitch for smooth tracking/sway, you won't even know that your TT is back there.
Other forums have the GVWR/GCVWR police who can give you specifics. RV salesman will always tell you that you can handle any TT on their lot, especially "if you just add some air bag suspension." With your 29RES having a GVWR of 9200 lbs, you were definitely getting toward the upper limits of a typical F150 crew cab (as per trailerlife and fleet.ford towing charts).
I traded in my Dodge 1500 QC Hemi for my 2008 F250 6.4 PowerStroke, since I knew I would not have the towing/stopping capacity for the 32BHDS floorplan which DW loved. No regrets. Love the power and solid feeling at highway speeds from my F250 (no white knuckles). Plus, I don't have to worry about being passed by a Prius while towing up hills.