The goal it seems would be better served by getting the kids involved in something a bit more practical. I'm assuming most of them haven't even had the joy of flying a simple rc trainer. If kindling an interest in an aviation career instead of knocking over the local 7/11 is what you are after then why not give them something a bit more attainable. Certainly something that wouldn't cost tens of thousands of dollars. ( and it will )

There is always someone to tell you something can't be done. That's not my point. I think by putting an after school class together that takes kids and explains to them principles of flight - airfoils, propulsion, aerodynamics etc. and apply that to more simple airframes that they can actually have a good chance of building and flying themselves will go alot further than something so grand. The President's plane is great, one of the prettiest jumbos to grace the sky, but you seem to be betting the ranch on Air Force One to change a kid's life. "Traveling the country flying it at military airshows", what's all that about? How is that going to help your inner city problems? Who's paying for that? As stated a couple of posts ago "your thought is comendable" but other than possibly ending up with a huge 747 your plan as stated just doesn't seem to make any sense at all. Remember the KISS principle. Keep it simple, attainable in a reasonable amout of time and give them something they can more personally connect to. Your chances of changing a kid's life (which is what you really want - right?) will be much better.

Best of luck,
Dan