Complex e-commerce website needs building in PHP

A restaurant booking site needs to be built using the agile approach to go from a minimum viable product to one with many features. It needs someone with the very highest in programming skills (PHP a must) to build a robust site that caters for many future changes and high traffic loads. Content management systems / database building experience a must. Ideally I'd like to find someone who is excited enough by the concept of this site to be paid in vesting amounts of equity over several years. If not interested in this as an option, pls indicate an hourly rate that you'd be willing to work for, keeping in mind this is a big job. Please only the very best programmers apply. Must be based in Sydney (ideally inner suburbs) to allow for face to face meeting.