not having a rig built to what is considered built for todays standards and has no straight sheet metal left on it will never bring more than 5k-ish ...44/9's , hp30/8.8 , And hp30/8.25 combos...or any mix of these on say 35's ...even 37's is not considered built for today ,but rather just run of the mill like a rig 10 years ago rolling on a hp30/8.25 on 31-33's ...today it's atleast built 1-tons and 40-40+ tires to be considered one of the built rigs ...it also helps to have doors that open/close with mostly straight sheet metal , and not something that looks like a cash for clunkers casualty ...also if still sporting leafs and shyt arms you are really going to have to give it away .