Screw the case.

Pop it into a different chassis and work from there. Go antiquing, garage sailing, estate sale farming, or pawn shopping. Get something that looks sexy as hell and pop the guts into it.

Sidenote: If you had a NuBus Mac, I could get you a giant Anubis statue which you could mod the machine into. The A NuBus Mac would be hilariously punny.