you could use 5/8 plywood and put some 3/8 plexiglass on top. mask it off and paint the back edges around your monitor black.
One of the things that i had decided when i built my cabinet was that i didnt want a dull, wood control panel.
So i used 1/2" plywood for the base, painted the back of a 1/4 sheet of plexiglass black, glued it to the wood cp, and then to finish it all off, with 3/4 T molding.
also to know, is that i destroyed my first control panel overlay and had to start over because another thing i didnt want was any kind of hardware (bolts) on the top of the control panel.
when you mount your joysticks, Use the shortest screws possible, and make sure that they dont even so much as touch the plexiglass top or it will crack a nice big X into it.
also, youve got to drill your holes from the plexiglass side first and make sure its backed by the wood, or it will also crack every time.
and since your actual painted surface is underneath the plexiglass, it will never scratch off. this is needed with the abuse a cp or in your case, a top to a cocktail will take.
other than that, everything was fine.