Well I had to look it up but it appears to be a fairly expensive rig new, right? What condition is it in? Also, it's really going to just depend on market forces and etc. I don't know enough about competition mechs frankly to really figure out what it's worth on the open market. Maybe some other folks will be along to assist, but it's hard to price a used item, as it could go very near new if it's in good condition, and it's highly sought after, or for less than one might think depending on the whims of the market. Where you sell it may also matter, there is the classifieds here but IDK... There's also various facebook groups dedicated to this type of gear, which you may or may not need an invitation to and etc, ebay, etc.
Sorry to not be more specific, it really is gonna depend. Most places I saw it were sold out, that may be a good sign for resale value, etc.
Good luck,
Anna