As far as I am aware the FE Model has very few spares available. Nikon announced many years ago (at least 20) that shutter spares are non existent. However that does not mean that the camera is not repairable if it is a mechanical fault or a minor electrical one that can be repaired itself.
Remember the Nikon F Photomic? The metering heads have been going bust and irrepairable for the last 30 years but I did come across a website a while back where these could be repaired, I think it is a matter of cost, and how much you value your equipment,