I am running stock 16 inch rims on my GMC - with tubeless BF Goodrich Commercial T/A's from Costco (no tubes).
I had the rims sandblasted and powder coated and they sealed up fine.
I also came up with a late model GM 4x4 rotor and made my own caliper brackets and with a little time on the rotors in the lathe, I was able to get brakes that perform very well.
see photo above . . .
The tires now have 12,000 miles on them and I have rotated them a few times but have only had to top the pressure up once in 2 years.
The brake rotors were turned down 1/4" on the radius and then standard GM Truck calipers worked just fine.

You can click on the photo for the whole story . . .
I also put a dual chamber master cylinder on my truck and the rear axle has Bendix style brakes . . .