Well first of all it sounds like you are sending an unarmed soldier into battle, or at best, handing him a rifle he's never fired and doesn't even know how to load and saying "good luck!"

In other words, making a purchase decision based on a novice doing some 3rd party numbers checking in an effort to verify a car isn't something I'd recommend. That's a job for someone with (at minimum) some decent knowledge of the car in question, it's difficult enough even if you are experienced, especially with the rampant fraud that has entered the hobby these days concerning fake documentation, restamped drive trains and body parts, as well as the simple fact that many owners are ignorant to the real facts and will parrot what someone else has incorrectly told them about their cars.

All that said, to break down the numbers seen on this thread the only good guides that I'd recommend are Galen Goviers white books, and those can be a bit cryptic to decipher if you are a novice. Posting details on Moparts will likely get you the best answers the fastest.