The PDI checklist that Slimshadie referred to in his post above is available - courtesy of Flyguy - at this site:
http://eaa1358.com/Passport/Pre-Deli...0Checklist.pdf You can download this, print it off and take it with you when you do your walk-through. Don't give them your $$$ and drive if off the lot until everything that needs fixing, adjusting or replacing is carried out to your satisfaction.
And welcome to the forum!