From what I understand, all of DMP's releases are going to be exclusively available through Akadot--you can find 'em here:
http://www.akadot.com/advanced_search_r ... x=0&go.y=0 (hope that link works. If not, just go to akadot.com and search for "Tezuka").
The titles you mentioned will be available there at some point--not sure on the official release dates, however. A Clockwork Apple, Brave Dan, and Alabaster just recently got shipped to Kickstarter backers, so I think it will be a while before they're made available on Akadot. It's going to be a few months before Storm Fairy is shipped to backers, too, so I'd assume that one will be available sometime in 2017 with the pace the other books have been released at.
I really wish they'd try and put Tezuka's work in stores, though. As it is now, very few people are aware that these titles are available in English now, and even fewer people are aware that the Kickstarters that made them possible exist. Ah well. Anyway, welcome to the forums!