So I bit the bullet and took it to the Camera Repair Service shop.
(And I'm sure there's an interesting story behind the 'Norway Alaska' name of this building.)
So I asked Michael, the owner, if he wanted to say a few words about the shop. There's a neat array of used cameras, including a Hasselblad for sale that you can see in the video.
And here's his partner at the shop.
I'm keeping the camera until the part comes in. I still manage to make it close enough that I can turn on the camera.