74 - 76 air cleaner 1bbl 225 slant 6

I am looking for this exact air cleaner (74-76 see image below) but in working condition And with the diaphragm piece that's missing in this one. Working condition means the diaphragm that opens the door in the snorkel works (I.e. Holds vacuum and the little door opens and closes). A complete one is fine but if yours is missing the lid that is ok. No rust infested or beat up ones please. The snorkel should have the rounded end and it should have an indentation (see second pic below)for linkage.
Many thanks