Adding some features to a School Management software developped in Yii, mysql - repost

I need a developper to add some features on my school management software developed in Yii framework: 1. Implement auth extension in the project 2. Dashboard for : a. Principal (school manager) with features : i. Manage student (enrolment, etc), etc ii. List student by course, by classroom iii. Manage courses (course by teacher, by classroom, etc) iv. List courses by classroom, by teacher, etc v. List teacher vi. Manage fees, by classroom, etc vii. Messaging to teacher, student, parent viii. Edit profile of his school (logo, name, template, color, etc) b. Teacher i. Give and manage homework for his course (give note) ii. Give note for report iii. List his own course iv. Messaging c. Student i. List his course ii. Manage his given homework (see, put back) iii. See his report iv. See time period of his course v. Messaging d. Parents i. List his student ii. See time period by student iii. See homework by student iv. Messaging to teacher or Principal 3. Templating, multi-language, send email when creating account. I have the Database schema, models, controllers and some view and all will be given to the developer. You must be familiar with yii framework, mysql, ajax. Most detail on how to implement each feature will be given to developer. Serious bidders only.