I have seen that the major players, IMC, World Pac and SSF have been out of 914 alternators for months. Probably no cores for the rebuilders are available.
I have about 6 cores I could get rebuilt by a local shop. Cost would be $125 shipped outright. You would need your old pulley and rear cover plate.
I don't need all these cores and would sell off some after getting them rebuilt.
Just gauging interest.
Bruce