Habedashery(?) shops should stock similar if not identical. For just a tenner though I'd ask carradice to do the repair.
Trouble it needs an exact match, or that top part needs to be unstitched and re-stitched. I can't find a match so far so may well just end up doing that.
@Polygon started
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Habedashery(?) shops should stock similar if not identical. For just a tenner though I'd ask carradice to do the repair.