I'm prepared to send in the element cover seal, but there's actually one more item that would make the "airbox kit" complete, and that's the filter box drain tube cap
I have a near-new cap thanks to Gman (he
is da man!) that I can include. Would you be willing to go out on another limb and ask your source if he would be willing to repro that, as well? This is another part that's impossible to find. If you're willing to ask, I can send it along with the seal; otherwise just the seal will go.
Once again, thanks for your efforts, reddyvv! You da man, too!