The 350/3500 SRW truck ratings have gone up so much the last few years some configurations have payload ratings now topping 4,000 lbs. You just need to make sure you pick the one that does have max or near max payload rating.
Most 5ers have contoured front caps now reducing, but not necessarily eliminating, the need for a sliding hitch in a short bed. But the short bed does require you to be a little more careful on tight back in turns if you don’t have a slider.
And no matter what the DRW fans say, a DRW is a pain for everyday driving when in small tight parking lots, tight drive thrus, etc. Yeah, you get used to it, but ......