Euro car - anything "quirky" like manual windows? no sunroof? still original euro motor (231hp)?
How's that 30 year old suspension? still OEM components? replaced?
imho, given its age, the fact that it is "euro" may neither help nor hurt value. Condition is primary concern. As you may have seen with longhoods, values are only temporary, so pegging a number is hard. Sharing a few pics of a new acquisition seem a requirement, don't they?
Since you will only be driving it and enjoying it, the only reason to worry about market value is for insurance purposes only.. Sounds like $25Kish.