You have to base your research and offer on the Model year not the year he purchased it. He got a discount for buying a left over or should have and when you sell it or have an insurance claim it will be based on production year. And I believe that that unit was made early in 2015. About midway through the year Ford started putting 8000 lb hitch ratings on their 350 and 450 units. I am not sure the extended warranty is worth $3000 as you can replace almost everything in the RV except maybe the genset for that, but thats a personal thing.