Today, I finally completed the project. After having the machine split in 2 (thus unplayable) for so many months, I put the finishing touches on the front half today and joined it all back up for a game.
The first step was to remove the existing decals from both the left and right front panels. As it was, some of the decals had already come off. In some places there were chips missing from the side panels and even what look like burn marks (assuming cigarette).