You shouldn't need the first book (also written by Guthrie). Based on it's description and some reviews, I skipped it because it seemed like I was well past all the material in there, but I do plan on getting eventually just to keep in my library and use for teaching purposes (he's as good of a teacher as he is a player so having his stuff on hand certainly can't hurt).
PM me your email address and I'll see if I can't upload the guitar gym stuff for you. My internet connection isn't the most reliable so I might not get it to you tonight, but I'll do what I can. It's also available on most torrent/download sights. I might be able to save you some time though.