For being fully loaded, I don't think it is too bad. You could always offer less and see if they bite on it. Sometimes when you have cash in hand, they might sell for less. Either way though, with it having the topper on and fully loaded, it's pretty good.
Yeah I don't think that is too bad a deal at all really. Power said he saw the lower priced truck with less miles, but it was just 10k miles less and a grand less. I've noticed that prices vary greatly on vehicles even when they're the same year and mileage on each vehicle isn't too much different. I think it comes down a lot to whether the seller owes on the vehicle still or other factors. But the one power saw may be just a basic truck without a lot of options whereas you're looking at fully loaded truck for the most part.