I have a Road Runner 4U on top of my 6505, with 1U open now that the 1101 is on the way. I'd like a 1U drawer for that slot. This is my rack case:
Road Runner Deluxe Effects Rack | GuitarCenter
This deluxe effects rack features front and back mounted dual rack rails with a 14" depth accomodating most every professional effects unit. 3/8" laminated construction with industrial rivets, stackable ball corners and recessed hardware.
Perhaps I just haven't had enough coffee this morning, but +Rep if someone can help me out.