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If you don't want to replace the entire thing, then I suggest you find a good auto upholstery shop. They're used to dealing with leather and can probably do a pretty good color match. I've had ripped seats repaired and it was almost invisible.
I'm not in SoCal, so I can't make a specific recomendation.
Yeah, getting a new or good conditioned used one might be the way to go. Labor is a killer and they probably won't be able to match the color and/or grain of the original exactly. Used black brake handles are fairly easy to find on eBay or a dismantler. if you have a unique color like blue or red leather then you may have to order a new one.