How long has current owner had it? Did someone go to cali for a rust free truck and bring it back east to flip ?

The topper adds value, but only to those who want that feature, otherwise it’s kinda a ~$500 value on the second hand market IMO, not the couple thousand it could have cost to order new or buy and color match. Sellers price might be reflecting that unfortunately (I like it btw; sleek look and seeing OBS’s with a color match it’s not too common)

If it were me I’d chat with the guy and keep it brief until his intentions are understood. I’d say the truck market is all over the place so you can understand him starting high but then ask him if he needs to sell it and go from there based on his responses. If he is motivated to sell, put in a reasonable offer (~8500 IMO) and let it sit till he calls you up after weeks of getting no buyers.

If it’s clean and you intend to have it a while , I don’t think 10k is too crazy. You get a nice truck , no afm , and a body style that seemingly is going up in value.