Online Appointment website

I need to build an appointment website. Should end up less than 10 pages but require a some technical skills *my hosting service is [login to view URL] which use linux server (***need to understand php, apache2, linux) *I plan to use wordpress(already installed), unless developer adviced me not to *Have to be great with mysql due to the nature of the business. *main focus is backend development but site should still look decent *Need to write clear comments on script. *willing to spend a bit of time walking me through what you are doing (data management, security) technical challenges *payment page 128 encrypted ssh and https: *all registration prompt a sms verification, enable facebook&twitter sign in *require to pull average yelp rating *google map API *data will be push to other software (IOS, Android app, window, OSX -shouldnt be a problem just thought I lay it out there) ***a very complex appointment calendar *possibly will be more but I cannot think of it now Will discuss details after hire. I will be picky for a fix amount of money. MILESTONES WILL BE SET VERY PRECISELY, so please only apply if you think you really can do it. I will be very selective so it might take a while for a response.