[blinkwatt]

Try to get PNCA to cover the labor at least. This might be able to save you some money,make an offer of around $2k-3k and you might get a good deal;
http://cgi.ebay.com/ebaymotors/Porsche-03-986-Boxster-2-7-2-7L-Engine-Motor-27K-Mi_W0QQcmdZViewItemQQcategoryZ33615QQihZ006QQitemZ 160124807261QQrdZ1QQsspagenameZWDVW

I don't know if the 03' is the same engine as the 01',I know the ECU was redesigned. I'd ask about a warranty.

Now if you feel like scaring 996 owners;
http://cgi.ebay.com/ebaymotors/Porsche-02-911-996-3-6-3-6L-Complete-Engine-Motor-18K_W0QQitemZ160124790628QQihZ006QQcategoryZ33615Q QrdZ1QQcmdZViewItem