MGySgt,
Thought I'd weigh-in from the pop-up side of TC land. I owned a 2007 Tundra double cab 4x2 and carried a 2007 hallmark Milner. The only thing I did to the truck was add Firestone ride rite airbags to level the truck and reduce side to side rolling with the higher CG and I went up to Load range "D" tires but didn't really need to do that but wanted heavier duty tires due to off-pavement use.
That rig handled and performed awesomely and had my needs not changed I would still be driving that combo.
If you haven't already you might check out the Tundra forums and read what other tundra owners have and are doing with larger TC's.
I have been collecting photos from the Internet of Tundra's with TC's since approximately 2007 and have seen a wide variety of Truck campers put on Toyota Tundra's.
It is the best vehicle I have ever owned and had a hard time letting it go, it performed great with and without the TC.
Feel free to message me if you have specific questions about either the truck or TC.
Exlporer