Hi,
I have been working in Flex for the past 4+ years and have also delivered 3 enterprise adobe air applications for iPad within the past year.
I'm pretty sure that I would be able to help you out in building your project.
Even if I have worked on both Flash Builder and IntelliJ Idea for working on my projects, I would like to know why do you prefer getting the build using IntelliJ Idea?
It's your choice on how you want to get it built, but I would prefer Flash Builder instead.
Your valuable input is solicited.
Regards
Murari M.