I agree I was excited until I looked at the numbers and thought about the agreement.  

1. $4500 is enough to build a fake and run off with the pre-orders.
2. No one knows for sure you can accomplish this.
3. You have no reputation, or testimonials of your past accomplishments.
4. I want to see your face, and more of web presence with an address and phone number
5. You can't start small by selling low cost systems as part of building your rep between now and July?

Well, I hope you are not a fraud as I would love to buy a system.