Sounds like a challenge.
If no one else is up for it, send me your bad ones and I will see what I can do.

I'm real good at taking things a-part.
Occasionally I can make a repair.


My thoughts are if it comes apart with out breaking the housing.
Then it should not be to bad to make a new diaphragm and get it back together.
It'll have to be tested st see if it it successful.