MIMF

I recently completed some structural repairs on a mandolin. It has "reverse" Waverly or Waverly style tuners and is missing the post, gear and screw for one string. I can only seem to find complete sets on eBay, and the cost is usually more than the value of my mandolin. I’ve exhausted all of my usual sources for small parts, (friends, repair shops), and I’m coming here in the hope that somebody has a set of these parts that they would be willing to sell. I'm not sure how to measure the gear, but the shafts are .218" in diameter and .957" long. The rounded part that mates with the gear or cog is .197" and the flat part is .145" wide. The depth here is .147". I'm not sure about the threads. If you need more information, please feel free to contact me.