I actually need cases for a lot of motherboards, but I'm specifically looking for a real AT case - I have a 1986 AMI 386 motherboard (yes motherboard, not just the BIOS!) with 64K cache that is full sized (like an IBM 5170 board) which runs great but needs a house.
In case I''m not making sense, here's a badly made MS Paint illustration of the type of case I'm looking for, where the motherboard expands right across under the power supply:

Just looking for a clone case, but will pay more for an IBM 5170 case (I have my 5170 motherboard a modified XT-clone case which could be reused for this 386 build).