The name of the project is cps2_digiav, but it can be installed in multiple systems (cps1/2/3). Because it was designed for the cps2, it doesn't necessarily have a specific point on the board to mount to; the actual instructions are "Use mounting tape to attach the board to a suitable place on...
Put me on the list of people interested in a version that supports the cps2_digiav. I'd actually be interested in one that I could mount two undamned usb decoders as well for a full consolization.
Interestingly enough, that is the page I have been refreshing for a week or so (since it was first linked a page or so back). I guess I just missed the first batch.