Do not buy a NIB game online, call around to various distributors and ask for a quote to have the game shipped directly to you. That's how most distributors operate. (And you are going to get the best price this way as well)
There are many listed in this thread:
https://pinside.com/pinball/forum/topic/best-stern-distributors-and-buying-advice-for-nib-pin
Just google the names listed in the thread if there isn't contact info provided. Then call them up and get a quote. Good luck!
Edit: I usually get three quotes before I choose who to go with. Ive bought from cointaker and JJ at gameexchange, but most of those listed will be easy to deal with regardless of who you buy from.