I seriously just had a nerdgasm... that's awesome.
I'm always a fan of gaming projects, whether it be covers, boxes, posters, you name it. I would love to get involved with this sort of thing, but I lack the know-how and talent, haha.
There was a guy on GameTZ (Game Trading Zone) that was selling boxes he made for Super Mario/Duck Hunt or SMB/DH/Track --- I can't remember which --- because that game didn't originally come in a box (it was bundled with the system). I remember he said that it was done at a professional printing place, and he printed it straight onto cardboard shaped just like NES boxes were, then just folded it
Maybe with the right connection, someone can aid you in this pursuit and make it easier for you, Shenske?