For the press, I built a mini four column hydraulic press, and built some some electric heated platens out of aluminum. I use a laser thermometer for checking the temps of plates.

Honestly, you can start experimenting even without the book. You just need a press, two heated surfaces, and a stamper (preferably one that has already been formed for a press). Heat the press up to about 320 degrees, and fill the surface of the stamper with perler beads. Before putting the beads on the stamper, put a piece of aluminum foil over the center of the stamper- this will save you a huge headache when removing the record from the stamper. Close the press just minimally. If you press to hard the beads will dent the stamper. Since you don't have a cooling press like the Emory cook patents calls for, you'll need to let it cool on the press. After about a minute on full heat, turn the heat off and let the press cool for about 20-30 mins. After that you can release the pressure and pull the record off the stamper. You'll need to drill a hole in the middle of the record for playback. I've had varying degrees of success with this, but I expect to have a much better success rate once I have the book design complete.
Here's an example of one the kind of record you end up with using the perler beads.

A couple things I've learned from experimenting with this:
You will definitely destroy not one but many many stampers experimenting with this stuff. I buy them cheap on ebay and I've probably destroyed 10 just messing around with this stuff. In time you become more aware of what works and doesn't and I'm pretty good at keeping them in good shape now.
Plastics melt at all different temperatures. Some will melt at much lower temperatures, and some will start to burn at lower temperatures then you expect. You want the plastic to melt, but if you burn it, your stamper is toast. Patience is a virtue when it comes to this. Slowly increase the temperature when testing an unknown plastic, and I highly recommend buying a respirator- this stuff is toxic if you get it too hot.
Hope this info helps anyone wanting to start doing some experimenting with diy pressing.