Quick look on Ebay Barry and it shows that yours is a very good price. I did see one that was a lot cheaper but it had a completely knackered engine and 800,000 miles on the clock according to the ad!
have you tried any of the 'we buy any...' sites? Won't cost you anything so you've nothing to lose. I tried them with my last van and it was a low offer but I hate selling stuff and dealing with tyre kickers so I eventually sold it for not much more than they offered anyway.
It was quite entertaining listening to the chap from 'we buy any motorhome' trying to get me to sell it to the them. He said if he walked away without buying it he would feel really guilty as the spores from the damp would probably kill me, "please, please don't ever sleep in it" was his last ditch attempt.