Good effort, the checklist concept is appealing in one sense but it won't cover so many situations and real world items easily...
For instance, recall's on parts and substitution parts improved over time to prevent issues (but not necessarily re-called - only replaced if worn/has issues recommendations by the factory).
There are literally hundreds of weak spots on any car and the 360 is no exception, just like any other modern car it is a collection of thousands of parts from hundreds of individual companies so its no wonder this is the case.
Some parts are no so important (just annoying!) like the old engine drip tray side panels on '99 models which didn't have the catch rails (later models did) so water would evaporate, re-condense, drip down the engine panels back onto the hot headers/manifolds and the cycle would continue on and on, irritatingly preventing any rear view visibility in wet weather!
Or how about a more important one, e.g. the chassis rails which the engine mounts sit on where found to need beefing up to prevent cracks on early '99 cars, the design was later improved but this was an upgrade during routine servicing done at dealers only if cracks/fatigue was evident. Did the car your looking at have this done or is it one of the newer cars?
You could try to condense all of the kind of knowledge into some sort of spreadsheet but its no so easy in many cases to detect issues. For instance unless you remove the ball joints, disassemble them and remove the rubber boots you cannot see if they are likely to fail in the future (due to the corrosion resistance coating being worn by dirt/debris) vs the obvious checks of 'wobbling' the suspension to check for play. If you remove them, you need to do full re-alignment of geo and is this really something an inspection can pickup! So it is not really it would take way too long. Better to see they have been replaced by aftermarket Hills Engineering upgraded Ball joints which are not only vastly better longevity than the original supplied factory parts they have been proven in many hundreds of cars.
What I am really trying to say is there is VAST amounts of knowledge that you really need your PPI inspector to have in their head, even if they do possess the knowledge and skills to validate all of the potential pit falls the inspection can easily exceed 8 man hours of effort and require testing ramps and removal of things like the under tray (a must) which takes time on its own - there are a lot of bolts!
Best advice I can give is to put faith in well respected, well known PPI testers wherever possible like Brian Crall (925 552 9700) who has pretty much seen everything and fixed everything that these cars are likely to throw at you...