You could contact HL to get details in the part number for the door assembly. It may still be in production and you could replace the entire assembly. I’ve done the four cargo doors on mine (had to get them from another club member) and it’s not all that difficult. The assembly is just screwed into the subframe around the opening.
Mine were older and out of production, but another member had kept his identical ones after replacing his with newer slam doors.
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