Need help getting some IBM F and M parts

[Hellmark]

Ok, right now, needing to replace some hammers in my XT Model F after it was knocked off my desk (it separated internally, causing the hammers to get damaged). Right now, looks like about a half dozen got damaged, with the ears cracked off.

The other thing I'm after is an Number pad enter key for my 1390131. That key has been broke for quite some time, and has a single key in its place right now, but as it is turning 30 this month, I hoped I'd do something special and get a proper key on it.

If anyone can help with this, that'd be great.