The VIN will tell you if it's a 90-93 (EB28) or '95 (EB31).
That looks like a very nice facelift. I can't tell if the drip rails and quarter window trim have the anodized finish.
The 11-99 Foundation license plate frame is worth some money -
CHP 11 99 Foundation License Plate Frame Authentic The Real Thing | eBay . I don't know why.
Half the asking price should get you a 90-93 with documented history, heated seats and ASD.
Sixto
87 300D