Thanks for your help people, very great info, i'm not looking to preserve the original machine in any way, i've stripped a lot of the gear out that wont be used and will be running 2 pc's in the back of it.
Thanks heaps for the tip on Nebula BadMouth, looks great!
One thing i am not sure of is the jamma connector, the one in it is a 72 pin and it looks like the J-Pac suits 56 pin, are these compatible or will i need to rewire the connector??
I really thought this would have been done a lot more with a driving cab but struggling to find a lot of info on it, i'll more than likely run late release PC driving games on it as they easily support link play, and the graphics and gameplay are 100% better IMHO