1972 dart 360 with 904

I have a stock 360 with 904 with what I believe to be original Flex plate and converter .


I had trans rebuilt and want to put in a original style converter back in . Bud can't dine one anywhere . All say " zero balance " and basically all suppliers Napa , auto zone, rock auto - yes all them say " unavailable" .

I really don't want to do the newer style weighted flex plate & zero balanced converter .

what are my options ? Or do I not have any ?