It's a 24 year old car, and as such will suffer from many age related ailments, no matter what mileage it has covered. My biggest concern would be rust. It might look OK on the outside , but without getting it on a ramp, or getting plastic undertrays and liners etc. off, how do we know it is not riddled with rot. Given its age, I would not take the risk. Also it hasn't moved for over 3 years. This is not good for the rubber bits (including tyres). Caliper pistons, brake cylinder rubbers, suspension bushes may have all sat in exactly the same position for 3 years.
Anyone making bids without a good look is taking a big risk. Unsighted, I would not bid more than £1000. However I am particularly risk averse.
In addition, I am always suspicious of cars on ebay. If I had a really good, old classic car that I believed in, I would be advertising it on Cars and Classics, Pistonheads or Autotrader, certainly not ebay.
Ebay is for disposing of your old rubbish with little comeback.