Yo medons, sounds like an awesome setup!
What's your take on the 10speed? I've always been a Dmax fan. 10speed = mo betta, IMO.
Presume you had around 4klbs in the back, how'd the suspension do? Didn't see any mention of suspension enhancements. If it hauls that big camper well, bone stock, that's awesome.
One suggestion for centering the camper easier without having to jack it up higher... What's the difference in width between the inside wheel wells and camper bottom width? You could just set a 2x4/2x6/2x8 on edge against the fender wells, 1 or both sides and use them as a gentle "guide".
I ended up doing this sort of by accident with the TC when I started removing the tailgate due to a conflict with the Generator compartment I built in the rear wing and the tailgate cable. I brought a 2x8 cut to length to use as a short "tailgate" when using the truck with camper off-loaded. It ended up being a useful aide for centering the camper.
Happy trails!