Thats not going to work like that.
You are going to have problems banging knuckles together. I would ditch the 1 & 2 start buttons move the rest of the buttons to the middle and put a joystick at either side.
What you need to do is pretend to hold on to a joystick. Now some people hold them different to others.
Either between your index and thumb or in your palm with your fingers around the ..uummm.....eerrrrr....knob.
Now look how much room you are going to need from the sides of the panel.
If you hold it in your index finger and thumb you are going to need a lot of room inwards from the sides and with only 11" things are goingt to be tight. It might pay to rethink the design and the need for 2 sticks on a panel. If you think you still need them, then an upright machine might be the answer if your cocktail doesn't have the room. Even better still, build one like mine
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