got one, looks like you are right about the lower space, but I bought one bigger so it is ok, just might not be able to fit a tuner in above my amp.
[b]New problem[/b]: cant for the life of me get all 4 screws to line up, 2 fine, third with a little trouble but I cannot get a fourth in, I am at the point of almost stripping screws, Obviously 3 will hold my amp but is there something I am doing wrong to explain my in ability to screw all four in