This is just a gut feeling, but since several of those receipts are big $$$ and cover a range from tiny problems to big services it sounds like the car was well cared for and not neglected or had things put off. You should check it out personally (if feasible) and look at the condition of the brake fluid (+/- test strip), coolant (may want to bring a tester), oil, etc. before going to a full PPI. I would look up under the dash and see if the clutch master cylinder is seeping/leaking since it hasn't been done and those are way more common a problem than brake master cyl. Does the CCU work properly? That's the only thing left that could pop up. And window thingies.
Nobody has a crystal ball but with those records and a good PPI you should be ok. Personally, I would get an NA2 since you say your budget allows for it.
You need to spend some time in here.