Hi, a plastic nut cover on one of the scissor hinges came off and in a gale the canvas has bashed against it and done a small rip about half the way around the head of a nut. Incredibly irritating. What is the best way to seemlessly repair this? It is only maybe 5-10mm long and goes back completely together if pushed. We are going to have to sell the vehicle next spring so I’d like it looking as good as possible. Thanks.