:FACEPALM: ... Ormbett, I guess you'll have to send many e-mails in order to find the solution.
Maybe it'd be a good idea to attach a screenshot of the OP of this topic. ;)
I realized that cover swap can't be done. Holes at button's places (upper blue or green part) could be covered (e.g. with sugru), but there's not much we can do with screw's threads (they are at the bottom -red at TIP Winter- part) and USB charging port place.