Owner of two Soundgears coming through, step aside please!
Judging by the placement of the input jack (body mounted, not side)
, the "Accu-Cast IV" bridge (which, IMHO, is one of the best bass bridges ever designed. The entire saddle assembly is mounted onto one plate that is radius-matched to the figerboard curvature - any height changes are made by two screws that raise/lower the plate)
, and the color, I would say that it's an early 90's SR-1000. "Bass Player" reviewed one "exactly" like that in '92, but as my collection is currently in storage at my parents home I can't be any more specific.
From the one photo available it looks to be in good condition, and bridge, body wood (ash as opposed to basswood on the 800's)
, and better build quality of that time period (IMHO, of course)
add a good amount of value to the bass, but the electronics aren't as nice as more recent models. It's also very much a "buyers market" for SR's, as their rep in the bass world isn't the best. Personally, I would top out at $350-$400.
Hope this helps,