As long as the MX you are using correctly line up, it should be fine. The Tectoy Saturns were just imported in, there is no difference in the board other than the region to US and the broadcast signal being changed to PAL-M. The only thing you may want to also do is replace the oscillator, or mod in a switch to allow it to handle both pal and ntsc (PAL-M is weird, it is exactly like an NTSC signal except for the colors, if your mod ends up making your saturn black and white, then you know it is broadcasting NTSC instead of PAL-M).