[Perfectlap]

as is pretty common now the glass window can be upgraded for about $1000. Labor for that depends on your area.

A low milage 2000S is a nice find.
The 03 and 04's were the heaviest Boxsters made so I'd be inclined to make up for that with the extra powah.
Whatever you do negotiate like a sonamum********************. Its 100% a buyers market.
Don't make an offer for a few days. Let them get their hopes up, get deflated then get them excited again. Anyone selling into this market has LOW expectations.