I'm too OCD to have that be part of my car. Or better yet, I'd order the new airbox and set it aside. If you're in the 'want an oem or want to get it back to oem' category, then having one at hand is worth it.
I purchased my car with 200 miles on it but it had a crack in the windshield. So the seller put an OEM windshield in before shipping it, but I also have a crated 'original Ford' windshield in my garage.
(BTW, that earlier entry of a > 5 month wait for a left headlight is really creeping me out; I can't afford the $$'s or space to build an extensive inventory; I sure hope that I won't have to get rid of this masterpiece)