Sounds like a great truck, but don't expect to get a lot of money for it. Not many people want the bigger trucks.
If you are in a hurry take a bunch of good digital pictures of it, write a clear and detailed description and put it on ebay.
Avoid creating obstacles to a sale like insisting on only cash and no shipping or other things that will slow a buyer down.
Oh and tell people where Ashford is, since even people who live in Washington, like me, have no idea where that is...
If you aren't in a hurry take it to the bigger car shows and the ATHS shows with a for sale sign in the window. Make sure people know you drove it to the show.