Figure out what it is you're going to be pulling first.
Just my .02 worth, because you may wind up buying more than what you need. If you don't have the campers yet and aren't going to get one for a year or so, just put some Firestone Ride-rite air bags under your 1500 Ram. They are only $250 and easy to install...
I've had them all too, and currently have a Chevy 1/2 ton Z71 with the 5.3L Vortec. Engine/power train run very well, but I'm not impressed with the truck. I'd rather drive a dodge. I did have a 2008 Crew Max Tundra before this, and not much will compare to that truck in my mind. Almost 400HP and 22MPG on the highway. If I remember correctly it got 13 pulling my 10,000lb toy hauler like nothing!
You checked the price of diesel lately??? yea, I know, but that 6.7L Cummins is a workhorse!
Keep an open mind, you'll hear lots of other opinions.
'13 800 PRO RMK 163
"Good judgment comes from experience, and a lot of that comes from bad judgment." ~ Will Rogers