Tardog,
I have a set of BFG MTs in 255/85/16 mounted on an Eagle 16x8 wheel. The tires are load range D, but carry a 3,000 lb rating. My BFG AT in 245 are load range E, and are 3,042 lb rated. The only tire I have found that exceeds these rating by a substantial amount is the Michelin LTX MS in 265/75/16 (maybe the ATs as well). These tires are the current OEM tire mounted on the aluminum wheels as a factory option on 01 and newer trucks.
My Eagle wheels are rated to 3,420 lbs @ 60 psi. Enough to carry the weight but not at the sidewall recommendations, 3,415 @ 80.
Which ever tire you choose, it will not be the load carrying rating that is your limiting factor.
Another nice thing about this size is that they do not extend beyond the body like a 285 or 305 will. They fit nicely, do not rub and do not require any lift.
I experimented with the air pressure and found the ride and wear were best with 45 psi front and 40 rear. The MTs can be heards especially at low speeds. The CTD is actually louder than the tires at cruising speed. Mine were/are for sale but since you are so far away it is not worth offering them to you.
I have a couple pictures that you might be interested in seeing. Send PM with an alternate email and I will forward them to you.
Glenn