You got that kind of money?.. that is a lot of trucks...why ask us? Bet the bank and you tell us what we need to know why and what you know after the sale. Not being, well, you tell us what not to do ...LOL! Most of us don't have that option. I can tell you this...It took me years to trade up to a Dually and I would never look back.. DoDge Cummins with an HO 6 speed manual...what they cost now is in outer space. But to be Crystal clear..why would you need a truck this big?..I guess my question is this...Cummins diesels are a work horse. Fords are way to complicated and Chevy is way underrated in my opinion...If Ram is your choice and you got the funds just buy it all. My sister has a loaded Ram Dually a newer...cowboy Cadillac. Mine is older (02) with only 86000 miles but loaded..every option you could want. I still shop it and it spins my head how expensive these big trucks have become. I just looked at a Ford 650...OMG....ok ..had to take a breath. I guess my advice would be what does your truck do for you, how do you use it and do you want to take the depreciation of such a large purchase? It WILL lose money for sure...if brand new. Mine was a steal....1 year old with 5000 miles and they took off 20,000. Not a lie. So look around...good luck and I hope you think this what you need to make your choice.