OK, talk to your Scoutmaster then, and ask him for a connection to an Eagle Coach. This is part of the process. For the fundraising, as I understand it (and I am only on the fringes of hearing about Eagle projects, not much experience) I believe you are supposed to keep a log of all donors, so -- to the best of your ability, you should make a record of all your cash contributions that have been made. Lastly, I don't think you can skip any of the paperwork -- take a look at your whole Eagle packet, read the instructions very carefully, twice -- and make sure you are covering all of the specific details.
I'm sure there are other Scouters here who can help you more. Best wishes! Do your best!