I am working with designer and will provide most of the screens design. But for some you may have to build but that will be very small number.
I created wireframes of most screen which I will share with you before I will finalize.
I will divide the project in 4-5 parts and will set milestone for each. I expect you to upload code every 2 days so that my team can review it.
If I will like your work, I may also offer you to build mobile apps for this as well as I have one more site for which I need redesign/ redevelopment. In short I have plenty of work for you if you are quality developer.
I will appreciate if you can send me url of the project where you used zend framework. Also let me know if you are familiar with using paypal, linkedin API integration.