At it's peak, the project had over 700 artists collaborating to execute the full recreation of the 2,000 page, 6 volume manga. Due to the obvious legal ramifications, the book will never be on sale in it's entirety, and instead released online for free. However, you can purchase a highlight book, featuring some of the best work produced from the 6 volumes from Floating World Comics for $15.
That aside, I really hope you guys have a lot of free time on your hands, because the first 350 page Volume is now available online for you to read over here. Check out our other Bartkira article over here, featuring a few of our favorite pages from the WIP project at the time.