In my opinion I would not ask less then 2000.00 to start with. I am not sure exactly how much time you have in it either. But I would think price it a little high and settle between the 2000 asking and maybe 1500.00.
Yours has alot going,
Mounted tool box
Large amount of real-estate for cook area
Extra space for travel storage
And a all around good looking rig
My trailer has a roof but not all the extras that yours has and I am probably gonna start at 1500.00 for mine. I wont go under 1000.00 tho.
I think you should not have a problem getting at least 1500 for yours when and if you choose to sell it.