Was scanning CPR's site and see they now have Bally Spectrum listed for emails to see if they can get 40-50 people to make a small run of these. From the page:
This is a special section of playfields CPR "might make" – depending on demand.
These titles will consist of small-run, low-production playfield offerings.
The Boutique Inbox will collect emails from interested POTENTIAL customers, allowing us to measure if it’s feasible to make these playfields or not. They are playfields we have artwork for, but just don't know if we can go any further.
Sending an email into the Boutique Inbox is merely an expression of a "willingness to buy IF made" so we do not consider any of your emails to be promises at this stage. No obligation is inferred. Just counting heads. If enough people sign up for a playfield in the Boutique Zone, it will ultimately graduate into the Standard Pre-Order section, where we'll seek follow-through on ACTUAL commitments. We'd typically like to see 40-50 people unofficially onboard, for any title here, to graduate to a Standard Pre-Order.
Send them an email if even remotely interested - link on the pre-order page here: http://www.classicplayfields.com/order.html
Hope this one gets made. I have the plastics set, but this would let me make mine "minty fresh." 
Matt
Muskegon, MI
Battle Creek, MI
