I admire a sense of adventure and youthful zeal as much as the next guy but I have to say it always makes me a bit suspicious when every perceived problem has been, or will be, remedied by the "perfect" solution. In the real world problems arise that we actually have to struggle with. A statement like "damn, I hadn't thought of that - gonna need some duct tape" would go a long way to building some believability. The more believable your project is, the more likely it is someone might sign on to it.
I also think you have chosen to link two lofty goals together without thinking things through (your own wishful thinking doesn't count here). Having unbridled enthusiasm only really works when it is married to a workable plan.
You have to objectively consider what is so appealing about someone sitting on their butt under 15ft. of water for hrs. How will this propel the public to donate enough money to justify the outlay in donated equipment and time. Look here and at your website to see what you are asking for in man hours and equipment. I've been involved in several mountaineering/wilderness expeditions and the human resources alone you are thinking of assembling and coordinating boggles the mind (that many egos all in one place
).
You also might want to get some counseling regarding liability issues surrounding the lending of equipment by companies or commercial divers to a minor proposing such a risky venture. In the litigious USA I would worry that their "implied" endorsement leaves a sponsor open to lawsuit. If a laid back canuck is thinking this, the potential sponsors are probably thinking it too.
I'm not trying to quash your obvious desire to do something "big" but at your age several smaller, more manageable goals might be of more benefit. Usually it is the ego that wants to "go big" against reasonable objections so think long and hard about your motivation. The first thing a good (safe) diver should get rid of is his/her ego.
Or, you might pull the whole thing off and prove me wrong. It wouldn't be the first time!
Good luck with your dreams either way.