Warmaster Dwarf Zeppelin... anyone know its current selling price?

[Juxt]

Hi guys, I apologise if this isn't the right place to post, I just figured it was the area which would see the most traffic.

Whilst rummaging through my embarrassingly overfilled forge world bits box I stumbled across a really old but complete Warmaster Scale Dwarf Zeppelin that I had originally intended to convert into something big (the main balloon part of the zeppelin is over 7" long!) and orky to field in Aeronautica Imperialis. As always, plans fell to one side and I got tempted by some other shiny thing and I promptly forgot about said war balloon.  A chap has approached me knowing that I had one of these apparently uncommon models looking to buy it, but I have no idea of its value- none have sold through eBay recently so I'm at a bit of a loss.
I guess I know what price I would rather keep it at, but I don't know if I'm miles out 

[fred]

I thought some had been on eBay.

£200 at least I would think from ones I have seen

[Juxt]

Wow! Well that's a whole lot more than I thought, thanks Fred.  I assume that's an upper upper price to a buyer who must have one no matter the expense, rather than a normal/average price?

[fred]

They are so rarely seen,I think that’s a fairly typical price. Most of the Forge World Warmaster stuff commands high prices.

The specialist games forum is probably a good place to ask.