For the 2nd one, the owner mentioned it wasnt on Revs. I'd be abit cautious on that aspect. Test drive a few cars before commiting, I test drove 3 cars before I bought mine and I'm glad I did, cos you get an indication of whats normal and whats not. .

One thing I highly recommend, in the boot, remove the toolbox and the trimming there and see if theres any rust on the metal surface itself. Check the upholstery to see if its damp or wet. That will indicate if its a leaky car. I found mine out the hard way

Theres heaps of threads around on what checks to look for in the S2k. Also, I remembered reading one of the threads that theres some S2k owners in Sydney who are happy to tag along and check the car out with you. Sadly, not much in Perth here when I bought mine..