I spoke with Wayne Gillard about this game a few years ago.
He told me that Steves wife was the one that put a stop to the game going forward as she thought it may have been disrespectable, at the time, to follow through with it.
One game was indeed made though.
Wayne told me he gave the machine to Steves wife in the hope that if she saw the game there she may eventually have a change of heart and allow production to continue.
He also told me that making a pinball machine from scratch was an enormous undertaking and he quickly realised he had bitten off more than he could chew.
Wayne gave me a little insight into some of his issues with Medi Madness so I don't think this would ever happen, even if Steves wife (I can't remember her name) changed her mind.
A shame really as it would've been cool to see the end result of this pin idea.