I have everything Styx ever did for free from the internet too.
I have 72 different WD Gann publications. Most are scans of the original books. I have several versions of his Masters Course, published at different times of his life for example.
You are right though, I am missing a few. I have "Studies in Tape Reading", but not "Secret of the Tape"
If you want, I will sell you a copy of my entire collection, and you can repackage that into a "Super" masters course. For you, I want $598.70 for the entire collection.
Anyone else, send me an e-mail and I will give you whatever you want.