Definitely looks like a nice Boxster. Don't think I've seen it on the forum. +1 on the PPI. If you MUST pass on the PPI I would certainly make a check list when you go see the car. Ask if the IMS has ever been done and ask for records. Check for any oil leaks, coolant. Also take the cap off the expansion tank and see if there is oil in the coolant. Check regular stuff like brakes and tires. Last think you want is a $10,000 Boxster with another $10,000 repair bill. Hopefully it turns out to be a good car.
Happy boxster-ing.