As previously mentioned used RV's tend to have less room for negotiation, especially if its a popular brand/model/ layout in good condition ( the factory doesn't make used RV's); however having said that do some comparison shopping on line (dealers tend to quote their bottem price on the Internet), then reasonably offer a price with a 10% discount and list your reasons (work it might need), your local and/ or repeat customer, your budget, etc. in the end it's worth what folks are willing to pay. NADA is a guide but not a bible-- figures are based on actual transactions as reported by dealers; low volume of a particular year, brand, or model will skew the numbers. Good luck!! Remember a good deal is a win-win where both parties walk away happy.