1973 340 Thermoquad - Rebuild service or need parts

I bought a 6319s to use on my project but its missing a couple of things and is in need of a rebuild.

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I'm looking for a rebuilder to test and tune the carb on a mule engine as part of the service. Does anyone here rebuild these carbs or have a rebuilder they'd recommend? I contacted Harms but he has a huge backlog due to some parts supplier issues and issues with his plater. He said he isn't taking on new work but will begin again potentially in the spring.


If I can't find a rebuilder, I'm going to have to try doing it myself but I dont know anything about the process. So, I am apprehensive about taking it on. If I am to rebuild it, I will need some pieces to make the carb complete.

The carb is missing:
Metering rods. I've done a bit of googling to try to find the correct spec rod that was used but cannot find anything definitive. Looking for recommended replacements.

It's missing the part on the end of this shaft and its rod that attaches to the fast idle lever
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It's missing the fuel plunger arm, s-clip and connecting rod
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