I'm excitedly waiting for the TechStep form
@jajan547 to make it's way to me so I can start working on it
What surprised me about the techstep is it is made form entirely off the shelf parts. It has a 6800 series micro the the code will need to be extracted form as well as 3 PAL's but assuming the code from all these can be extracted it should be fairly "simple" to recreate it