Hello, i'm new here and i've been reading around and decided to join so i could ask some questions and get a little help. I am wanting to buy anywhere from a 2004 to a 2007 Dodge Ram 2500 quad cab short or long bed Cummins 5.9L diesel. I am wanting to get it with under 150k miles so i can have it for a long time. But i am also wanting to do a lot in mods so i can get the best gas mileage possible...but i also plan on lifting it 6-10 inches and putting 20 inch XD monster rims and 35'' or 37'' Nitto mud/trail grapplers, and i know that will hurt it a lot. But with a cold air intake, dual exhaust maybe stacks, a chip and or programmer, all the gauges/pods, and whatever else...please help me with what will help improve gas mileage as much as possible after the lift and tires. thank you!!