Hi, the project looks interesting, thou the budget should be further discussed.
I am a web developer with more than five years of experience and lots of tricks in the bag. Please contact me for further details and samples of my work.
Why don't get a Ph.D. into it if you can pay him the same that any newcomer would charge you? That's is exactly what i am offering you. The brain power of a Ph.D. at the cost of someone that barely can read php.