The V5 shows it as a write-off and I don't see that in the description. That also needs bearing in mind when it comes to spending money on the car. It's never going to be worth more than about £1,200 because of that.Just popped up on gumtree, a lot closer to home as well!
https://www.gumtree.com/p/bmw/1999-z3-73-000-miles-needs-some-tlc-795ovno/1219811748