I had a 02 F450 with the 7.3L. Pulled a 30' camper. If towing alot, upgrades I would do:
Larger tranny cooler (and add a tranny gauge)
https://www.dieselworldmag.com/ford/%EF%BB%BFcool-running/
Oil cooler O rings
https://www.riffraffdiesel.com/oil-cooler-seal-kit-94-03/Fuel filer cover
https://www.riffraffdiesel.com/riff...33eAgitLKU-G5dwM6spn-eJXOQxoCM8QQAvD_BwEParts to always have on hand
A crank sensor and the 10mm socket and ratchet to change it.
Fuel pump (change it now if over 100K miles)
Glow plug relay
If you were near by I have some Thule roof racks for kyaks I would give you