Hey everyone,
Appreciate the insights. I drove the car on Saturday and it felt amazing. The driving was smooth, clutch was "like butter", seamless shifting, ran very well by what I could tell.
Timing belt was replaced less than five years ago, A/C repaired a couple years ago (both by Porsche), and no noise coming from the back. I have full service records and a number of the concerns look to be taken care of.
That said, I'll go back before purchase to check some additional things based on the information you all have provided here. The owner is a friend of the family and the opportunity came from me reaching out at the right time so I'm very comfortable on that front.
Assuming everything continues to go well, I'll get some photos uploaded when/if I take possession!