I'm sure in the next day or so many filesharing links will be added to this thread, at the moment I'm upping the Debug 3.55 DGF PUP but that's all I can do at the moment. Unpacked the 3.6 SDK archive is 4.48 GB (4,816,369,265 bytes) in size for those curious.
Yes of course, look at the provided image. There are also the keys for 3.56 inside but I'm wondering about the date, could somebody have the 3.56 keys at the 14.4.2011 and didn't share and now all of the sudden provides everything ? Weird, but possible. There will be no complete SDK out at this minute, because there aren't every part available (20565 / 21088) and the *.RAR archive has an password encryption (Unrar It! ?).