OK so the 60-in-1 board had to go, just not happy with the menu and game quality! Makes the finished job feel really cheap...
I found an old dual core PC at the office, loaded up TinyXP, MALA and MAME. Got everything working just nice then stripped it all down and mounted it up in the centre console.
Had to order an Pac-Mini from the states to interface the computer and controls so grabbed a couple of their servo stick's while I was at it! So simple yet amazingly effective! Good being able to play both 8-way and 4-way games without having to change anything!
Also found some little clear rubber feet at Bunnings to sit the glass on. Sits nice now and their hardly noticeable.