The plate in a honda valve cover is spot welded in it does not simply pop out.
I know, the spots can be ground and the baffle pops out, just like the clone covers though. I understood your post as saying the honda covers had a baffle that couldnt be removed at all, so i guess i misunderstood that...i apologize. Easiest way to fix his problem would just be to use a clone cover, with the baffle removed, or a Champion valve cover that is taller. If he is only barely getting contact, he could simply stack 2 or 3 valve cover gaskets and likely fix the issue, but he shouldnt be getting contact with stock valvetrain components in the first place, something is off here