Hey, Jason,
Nice find! I just recently got my first Kirby as well. Mine is a G4.
Since I have all hardwood floors, with only a couple of area rugs, I never saw myself owning a Kirby.
But, it came with a mess of extras, and it was free. I couldn't pass it up.
I shined it up the best I could, by hand. I hand washed the outer bag, and replaced the disposable bag with a HEPA version.
It still needs some bits and pieces. But, I can see why people like them. I just wish I had some real carpet to try it out on!
I hope you enjoy yours!