Eric,
Welcome to the forum, lots of great info on here. And lots of experience people. I'm an AME on the East Coast and I know exactly what your talking about for the airbox, I actually had a sticky note with that p/n on it and threw it out this morning.. Geezzzz dumb luck. I will check my office later tonight, but before I can get that done, I'm sure someone will chime in with it.
Good places to find what your looking for are barnstormers and ebay, I have had great luck personally with that. I check them every other day. Something usually pops up.
Oh Yeah
And let me be the first to say...
HEY LOOK A NEW GUY....
lol