Welcome to the forums.
Boy, actually working at the LHS. Dream job for a kid. I got most of my kits as a kid as presents or from the local 5 and dime store. Once I could drive and was working, I searched out the local hobby store but since my family only had one car, and I was always putting gas in the darn thing, I never seemed to have the money to get what I wanted.
Just curious, how big is the stash?
Now that you're ready. Strip off the plastic wrap, open the box and get dirty. Beware of sharp edges and points. Your results may vary.
Remember above all else, HAVE FUN.