Develop an Institute Management System

Hello We have an Institute. We would like to have an online system developed in PHP to have the following features: 1: An Admin who can add staff, teachers, parents and students 2: Student registration system (Will be done by staff/admin) 3: Class Scheduler (Timings and dates will be scheduled for each students for each day) 4: Attendance System 5: SMS Alerts - SMS should go to students/parents upon admission/registration, sms should be sent when a student is absent, when fees is due, when payment is done, when class is scheduled for the next day, holiday alert, time change alerts 6: Parents should be able to view attendance, modules completed so far, alerts, results and performance, teacher remarks 7: Students should be able to view course modules, course completion stage/status, Leave application, download certain materials, upload assignments, view teacher remarks, ask teachers doubts 8: Teachers should be able to mark availability, attendance, leave application, schedules, should be able to get assigned to the student(s) the teacher is teaching, should be able to view student details, parent details, write remarks, give assignments, asses assignments and provide marks, view results, We have a wordpress site, if this can be integrated, well and good. THe project has to be in PHP and the design and User Interface has to be super simple.