Sounds like you’ve got what you were looking for, but in case you need or want more, and assuming it’s the housing you want and not the guts, you can buy just the shell on ebay or amazon, running about $10-$20.
Ref the thread title, I figured he actually wanted just the case as you suggest.
Explaining the (weak) joke ...
A Gameboy is an electronic game from the era when electronic games were novel. They were called e-games to differentiate them from card games, board games, paper RPGs like D&D, etc.
If you leave the guts, the electronics, out of a Gameboy, what’s left is a Gamboy. No e.
Just remembered I forgot to come back and post pics. It came out pretty good, if I do say so myself. Not like a lot of modelers on these boards but passable.