Sources Tip for K-H caliper bits

I recently got a set of K-H disc brakes for my Dart. I'm soaking every threaded part on there right now prior to disassembly and a bath in Evapo-Rust. I need the pad retainer clip and bolt for one side, I have 3 of the 4. Any tip where these may be available - other than haunting the for sale threads here and other sites? Need a transfer tube as well - one has a unfortunate kink on it.

Many Thanks - George