I was looking at a XJ600 on ebay, but then I found out it had a non-standard exhaust, so it would be a pain for me to insure. http://www.ebay.co.uk/itm/150996874836?_trksid=p5197.c0.m619 It's not exactly a ZXR, but it'd do me if it wasn't for the exhaust. And it's at a dealer, so you have *some* recourse if it goes bang. The last ZXR400 I saw was at my local yamaha dealer, it wasn't in great condition, yet they still wanted £2.3k for it. I have to say though, I love the air intakes. those alone are worth at least £2k.