Lady Hillary has recently gotten around to putting her Oscar Schmidt autoharp into playable condition. She has run up against two issues.

The strings have what appears to be a metal grommet on the loop end of the strings. She is having problems locating these. What have people used if she cannot locate the original style?

Just above the attachment point is a squared off piece of wood which is before what corresponds to the crosspiece "nut" on a guitar or mandolin. This instrument appears to have had a good bit of use and there are fairly deep grooves in this crosspiece. Can someone recommend a repair for this problem? If so, what kind of wood or other material?