Good information derived at the CAT scale, but as you are aware to confirm all your weights and your WDH adjustment three passes over the CAT scale will be required under your final loaded conditions (reference prior "CAT Scale how to" link). As you suspected, once you get your TV/TT combination completly loaded for camping your weights are going to start closing in on your TV weight limits.
Just a couple thoughts that may be of help as you dial-in your TV/TT:
* When referencing WDH chain links, refer to chain links "under tension", counting chain links hanging could through you off if the two chains are different lengths (doesn't happen often, but is possible).
* As you implied, with the late model F-Series trucks Ford is the only manufacture that states for 2011 and newer trucks that the WDH should be adjusted to eliminate about 50% of the front end RISE..., same as returning at least 50% of the weight originally removed. Returning the front suspension back to it's original height and/or weight is acceptable as well.
* If your Reese Strait-Line Dual Cam uses trunnion spring bars, they don't have to be set parallel to the A-frame. In most cases after adjustment they will be angled downward ..., perfectly fine. If they are the round spring bars then parallel is ideal, but a "slight" downward angle is ok.
* After making any WDH adjustments...., drive to a parking lot and put your TV/TT into a turn, then get out and inspect for any WDH component binding and for adequate clearances.
* Your E-Rated tires were a smart move (LT's ?).
Feel free to post side view pics (close-ups) of your WDH if you would like a second pair of eyes on the set-up.
2016 GM 2500HD 6.0L/4.10
2005 Jayco Eagle 278FBS
Reese HP Dual Cam
Putnam Class V