In my opinion, you need something not quoted.
The pre-cert inspection is overkill.
The visual check is not enough.
My dealer does the visual, a road test, and puts the car on the computer, runs it through a diagnostic. They also do a print out of all warranty work done on the car since day 1.
They charge $230 and this takes them about 2 hours.
BTW-this is Hoen Porsche, here in Carlsbad. The contact is Mike Cooper at 760-438-4434 if you want to speak with him.
Hope that helps.
Good luck!