Or any other Chevy, get it with everything (especially the oversized power mirrors!) on it from the factory. The only thing you should have to add is a running board. It's pure hell to try to get any add ons at the dealer.
On the other hand, there are a LOT of these big trucks sitting on used car lots! Seems like quite a few people who bought big trucks for "show" now want economy cars for "go"..... so it's the happy hunting ground for people needing tow vehicles.
With a 34' I'd be looking at a 1 ton, period.