Many thanks to all of the fine folks that have made suggestions. The SME M2-12R and Ortofon RS-309D are now both serious contenders.
I may have to reconsider my plinth orientation, however. It was initially my plan to copy OMA's TD-124 by mounting the 12" arm at the rear of the table and the 9" 3009/ll in the standard arm board spot. Aesthetically, it looks better to me this way, but functionally it might not be as convenient.
I may have to reconsider my plinth orientation, however. It was initially my plan to copy OMA's TD-124 by mounting the 12" arm at the rear of the table and the 9" 3009/ll in the standard arm board spot. Aesthetically, it looks better to me this way, but functionally it might not be as convenient.