Well, I bit the bullet and moved back to a full size case (up from a mid tower). It use to be that a mid tower had at least one 5.25 drive bay (and back in the hey-day, 2-4), but that seems to be no more. Had to get a Fractal Design Define 7 XL to meet my demands for a case that supported a full size ATX board, at least one 5.25 drive bay, and a 7+3 slot configuration (i.e. so a 3 wide GPU could be installed where it's PCB wouldn't break where it connects into the motherboard due to the stress of it's weight).
I mean seriously why any case manufacturer hasn't simply made a mid tower that is an inch or two wider which would allow them to place an optional vertical mount 5.25 bay, and also have room for the 7+3 (or even a 7+4) configuration for alternate GPU orientation is simply beyond me. Adding that inch in width would seem to be so trivial and allow for so much more functionality (space for hard drives on the rear, water pumps, cable/tube routing, offset to move top mount radiators away off axis of the motherboard so there is more clearance on the motherboard for taller components interfering with the radiator/fans, etc....).