I went and checked it out today and it was pretty much exactly as advertised. Cosmetically it was an 8/10 exterior and 8/10 interior. Only blemishes on the interior were the inexplicable sub hole, the stereo surround piece was loose (easy fix) and a very slight amount of wear on the drivers seat bolster. The rest of the stereo install was fine and it sounded very good compared to what I'm used to (dsp equipped e38). It looks like it has 100k less miles than it does. Tires were new, wheels unblemished and had 3 exterior defects as described along with some rock chips. The thing could be 9/10 to 10/10 with $300 worth of ebay parts and a $300 detail.

That said, it is non-op due to the water pump issue (unverified, it has a coolant leak in that vicinity) and high mileage at 164k, so I feel it would be worth 10k or less given that it can't be test driven. I may make an offer given I have a water pump sitting in my garage, have a truck and trailer and know that motor inside and out, but it won't be near the ask.