I have two A4 filing cases going spare. They're in good condition, except that the closure catches are broken on both of them. They vaguely stay closed when there's not muich in them but you'd just need to put a rubber band or something on them to keep them shut if they're full or you're carrying them by the handles as they gape open then.
For a handover, I'm in Blencarn, but am in Penrith a few times a week if that helps.