This has been done before.
Call up PPS, tell them what you want to do, see about negotiating a royalty deal on a per-unit basis as well as access to original game assets and get busy.
This is also a hardware-independent solution. Toss a P-ROC in there and go if you can't get your hands on another WPC-based control system.
Rick may be brash, but he's a business man, and deals like this have been made before (IE: BoP 2.0)
(This applies solely to unlicensed/original themes in the WMS/BLY lineup)