Heya Rob
If you can get hold of a set of EJ-spec Airchief radio knobs, I sure as hell wouldn't hesitate to make you an offer
. Please PM me if you're able to get hold of those radio knobs and I'll get in touch ASAP.
I'm sorry to hear about your experience with the EH club. Even though I'm not with the EH club, I've had nothing but positive dealings with them if I bump into any of their members at car shows and the like. That you were stiffed when you made your enquiry surprised me no end, stuck-up attitudes like that are the bane of some car clubs but I would never have expected that attitude from the EH club :-/. Oh well....their problem and I may rethink my position on recommending their service for decoding engine/chassis numbers.
Pete