I have access to the designers and illustrators, as well as a few programmers, but they are on different projects right now. i just couldnt seem to focus on it. I wish i could, because games are my passion, and I think this would be popular.
sprout builder is great imo. i would like to have some features similar to theirs editing wise. Very inspiring, and i have been a fan since i saw their demo.
Having worked with Flex extensively - I think it would take at least 3-6 months to prototype.