Wrong. Or, please tell me where you shop if you can do front springs, a rear leaf, and a sway bar for $160!Probably cheaper to upgrade with after market suspension parts that to buy "special package" from manufacturer.
I think this is what most of us do for all brands of truck.
So just go with the Ram 2500 diesel and add air bags, you won't regret it
Don't forget that out of CG and at max gross you are also close to max braking effectiveness...