Read this:
https://sites.google.com/site/mikefocke2/mikesporscheboxsterwebpages
Great cars but be aware that parts are expensive. I have had my 2003 2.7 for 2 years and have been really lucky, only had to pay for servicing and rear tyres so far. Unless you count the rear speaker upgrade, Pioneer double din satnav, OBC, cruise control etc.
Get it inspected by a specialist (not main dealer) - this may save you a fortune. Buy as newer
model as you can afford.