I can't help you with a dealer name, but unless you are planning on buying a much heavier travel trailer or fiver I would not go to a diesel. Good used 250/2500 diesels will be much more expensive than used similar gas trucks.
If you do decide to go diesel, do a lot of research on the 2007 and later DFP equipped diesels. They can have problems if most of your driving is short trips and they don't get an opportunity to regenerate often enough.
I simply would go gas if you are not planning on a TT or Fiver over 10K lbs. Having said that, I like my Cummins equipped Ram for my 12K lb fiver. Good luck. Keith
