I determined that I would use a computer with an I-PAC. I purchased a video card for the computer that would allow me to use the monitor that came with the cabinet, however I was not able to get them working together. I ended up using a slightly larger computer monitor as the display.
After removing the original game board and power supply a few modifications were required. First the board in the back of the cabinet had to be cut to allow the computer to be placed inside.
With a ton of help from Matt all of the original buttons were mapped to the I-PAC.
As I said, I had to replace the original display with a computer monitor. The monitor on hand was too big for the cabinet and some changes were made. First it had to be placed in upside down, in addition sime of the plastic of the monitor had to be removed. Also, the plastic matte around the display had to be trimmed to display the entire screen. The monitor also extends past the rear of the cabinet so a notch will need to be cut from the access board to allow it to close.
A power strip was added to the cabinet and plugged into the original power block so that the existing power switch could be used to turn the cabinet on and off.