You may have to search around for all the items, but I'd bet you can find all of the items in the DIY section(s) at renntech.org (you'll have to register, if you aren't already on there). Good luck.
Invest in a Bentley Manual,best book for the Boxster.
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-99' Zenith Blue 5-spd...didn't agree with a center divider on the freeway
-01' S Orient Red Metallic 6-spd...money pit...sold to buy a house
I stopped my squealing noise by replacing the starter. Got a used one off of eBay for 65$. Two of my neighbors even noticed that the Boxster had stopped making that strange noise.
Fairly easy DIY. It took me about 2 hours.