I'm ready with all ordered hardware in a week, and ready with wave 8k adapter aready tested.No, not done dancing eyes yet, that code above needs checking over / translated to MIPS (and then patching into the game).
Xevious 3d is done, but lets see how @nem goes with star sweep first, there's no point doing a difficult one until the conversions are known to work.
At this point I would be very happy to test something obviously at my own risk.