Heart of England do a nice polished stainless edge trim to cover this.
I have them fitted to my 4/4 and they look good in place.
They do, however, only cover the edge and don't go back very far onto the trim panel.
From you pic I am not sure if they wwould cover the worn area.
A call to HoE with measurements would resolve that question.
http://www.heartofenglandmorgans.co.uk
