well not buy, have a deal with a guy who gets cab's and i convert them to run mame for him.
control panel looks like it was drilled for single joysticks each side, but current look to have buttons (2 sets per side) for track and field/ konami 88 etc.
single 19" monitor in horizontal position with a glass bezel.
certainly not homemade, but does not appear to have any branding i can find.