I attached some pics of my control panel,its still in a crude phase and not final,just mocking everything up before i remake the final one.
what kind of trackball do you have? I have an xarcade and it has the 1/8 lip like yours,I think they all have that to some degree dont they?
Not sure if you can tell in the photos,but my joysticks and trackball have their spots cut out of the wood,normally this area would be routed.they mount directly to the plexiglass.for this thickness of a cp (3/4 inch) and setup in 3 pieces(base,print,plexi)I really had no choice but to mount them like that.unless i got longer sticks for the sanwa,but then the trackball still wouldnt fit properly.
I could make a youtube video of how it goes together if you want,give you a better idea. Also i have a suggestion for you if you dont want to go this route.you said after you finished your cp it just didnt feel right,did you give it a few layers of clearcoat?and i dont mean a clear coat out of a spray can.use automotive clear coat,you mix it yourself,i beleive its 4 parts clear to 1 part hardener.it will harden alot more and look better than using spray bombs.thing is you need to rent a spray gun and compressor,if you dont already have them.