I recreated these in vector format on request from mrclean. Note that the original side art was cut to fit the layout of the cabinet. I left out that formatting so it could be applied just as a rectangular decal or cut to match various cab designs.
This isn't a perfect replica of the original artwork and there are some mistakes present that would take significant rework to correct, but it's quite close overall.
Here is the left side:
[ATTACHED IMAGE - CLICK FOR FULL SIZE]
Our vertical MAME overlays: http://verticalarcade.com