I have just started getting interested in the NEO GEO world. Theres a local shop that has a two slot neo geo cabinet and I was wondering how hard is to switch out the 2 slot to make a 4 slot arcade cabinet. I was wondering if it would be easier to purchase a 4 slot cab or just purchase the 2 slot cab and then replace with a 4 slot board. Any answers would be greatly appreciated. Thanks.