There's a similar truck for sale in my area with a 9' Fisher and an 8' dump body, asking 23,000. It's not moving though, it's been there for a couple months. That might be an indication of too high a price.
We bought a 1996 F350 4X4 with a 2-3 yard dump and minute mount plow also has the Powerstroke diesel for $17,000.00 I wouldnt pay much more then 19k becuase its a gasser! But milage helps look at the kelly blue book!