No longer for sale ?
There seems to be no rhyme or reason to these car's engines failing. The 99's didn't have the same IMS that some of the later cars had. From my experience with 2 996's I'd have no problem buying another. Just make sure a few updates are completed like the X51 oil baffle and a transmission cooler if it's going to be a dedicated track car. The Porsche Motor sports air oil separator is a must too.
Here is the IMS story :
http://imsretrofit.com/