Whatever you do, let us know! I’m following this with interest as I have a Harmony just like that. The saddle doesn’t need replaced yet, but it looks a little rough and being so thin I’m afraid it’s going to break/chip.
Also: the slots in the original saddle , do those look original to you? Mine has them too, and I just sort of assumed they were a modification by a previous owner to lower the action, since I’ve never seen a ukulele with string slots in the saddle. But seeing another one up close with the same thing I wonder if they came that way.