I have to thank you WileETundra.
I decided to make one of these this weekend (actually two), but instead of using the board you used, I decided to make my own board.
I got my inspiration from you and this site
Documento senza titolo
So I started by making a schematic and using ExpressPCB to make my component / trace layouts. (If you want the layout file, let me know and I will post it.)
Here are the files used (PDF).
Edit: If you decide to use these files to print your own mask, then be sure to select
none in the page scaling box under the paper handling section. The image should print to the correct scale.