Good luck Nick, I emailed Mike Ross at B/E & A Restoration Parts, Inc. not long after PG Classics started listing the reproduction six-way tracks on feeBay. I asked if there was any plan to offer the spring clip as a separate item and he said there wasn't. This seemed a little short-sighted to me but I didn't push the issue.

I really don't understand why this wouldn't make sense for them, the darn spring clips are always either broken or missing. I guess it's possible the reproductions don't use the same spring clips... which would explain why they can't be purchased separately. Bummer...