hi there,
I am core Actionscript 3.0 programmer working in Flash, Flex and Adobe Air for all platform from web-desktop to mobile/tablets. Please I urge you to look at my feedback and reviews here at https://www.freelancer.com/u/programmerAS3.html
Regarding the project, do you need this as a regular web/desktop or for ios/android. If this is for regular web/desktop, there should not be much problem and it should happen pretty quickly with very good output. But if this is for mobile/tablets, there are really serious problems. I have done not the exact but some similar flipping things for IPad some 1.5 years earlier here at freelancer. It was really difficult and output was not upto that standard of the web/desktop. But now, we have starling/feathers which will surely improve the performance.
Let me know if you would like to know more on anything.
Regards