FWIW I don't blame the seller for what they are doing or saying that they are entirely responsible for the situation. However, the price is far above what is reasonable and fair IMO, and the seller is aware of that given his post above on the matter.

Awesome. I made a 4 panel version that I printed on full page label paper and stuff to the inside of my old 4e DM Screen. It just consists of parts of the book and character sheets cut and pasted out.

Panel 1: Special Moves
Panel 2: Basic Moves + Basic Outcomes
Panel 3: GM Moves etc + Tag Reference + DW Logo + Names
Panel 4: Monster Creation + Other Damage

I have found that this is all I need to refer to in play as a GM.