Choke missing - 71 Duster 225

I have a 71 Duster 225 with what I am pretty sure is a Holley 1945. I assume sometime in its life someone swapped a 1945 on it as I didn't think they were on the early dusters. Car is new to me and just starting in on it. I can start it with a bit of starter fluid and then once warmed up runs great. Have a carb rebuild kit on they way. Not sure which choke setup to use. Would like to possibly get an electric conversion. Also, anyone know where to get the little wire clip that goes on the top of the carb that the air cleaner bolts on (or what it is called)?

Thanks,
Dan

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