We can get you a new one.I don't recommend it personally.
Dawley makes them for us. They are certified to do a repair and they will replace as much as 99% of it, if it needs to be done. They will basically fix anything that can remotely be fixed. Realize they own the tooling that it was made from in 1975. Conveinent that its only 5 miles from us, eh?
I know I talked us right out of a sale, but its not really a part we 'make'. If you are forced into new, then yes, you should call ACA for the legit version.
Edit:
Now that I think about it, are you sure they dont have PMA?