Helm has a manual set for the 06 Sol, so I can't believe there will not be one for the Sky, unless the same manual is intende to be used for both. The vast majority should be the same, but I don't know if some significant detail may be different, which is why I am still hesitating with the purchase of one.
If anyone ( Ernest ? ) has a good technical contact, I would love to know how applicable the 06 Sol manual is to an 07 Sky.
Helm also lists, for "future availability" the 06 Sol on CD.
I have used the CD manuals, and I have used the paper ones. From my experience, the paper book is better. Maybe I'm just old, but I find it easier to use, and I don't have to worry about getting my computer greasy. Besides, the books are $135, and the CD (when available) is $ 400.
Chilton's, Haynes, et al are, in my opinion, of little value, especially compared to the factory manual. It seems that whenever I tried to use one, I would get to a point where it would say something like "Further work requires tools or knowledge not available to you." and there I would be. So I do not buy them any more.