Maybe a good idea to share the amount the local pawn shop was willing to give you. Pawn shops do undercut by a lot (they have a physical store), but I expect people here to do the same (such is their right).
I do hope you'll be able to resolve the issues you're facing. Good luck!
This!
If I ever sell something such as old items such as a watch then I always pop down to the pawn shop and see what they offer me.