You need an indy shop/mechanic who is intimately familiar with Boxsters. Tell the forum where you are (geographically) and maybe somebody can point you in the right direction. Use the search function also, to gain more answers. There are too many items to list. You can always use a dealer. They will give you an itemized list with detailed parts and labor that you will find very sobering.
Spend the money and join the PCA. You can then get connected with your local chapter. They will be a huge resource that you can plug into. PCA members usually get a 10% discount on dealer parts.
Look and drive as many cars as you can. Good luck.