Patches and discussion for Ensoniq VFX family

Hi folks,

I am the original owner of a VFX-SD. It's a great instrument, in mint 
condition, but I don't play it anymore and I'd like to sell it. It's 
had the infamous ribbon connector problem fixed, and I have all of 
the manuals, as well as a stand and bench.

How much can I reasonably expect to get for it?

Thanks!

Dennis