Customization of php script

Hi. I have purchased a php CRM (Lead Management) Script and it is working well. I need some customization in that script. Basically it is built for two level. A project can be created by an admin and assigned to a sales person. I need three levels. A project will be created by Business Development Team and sent to the Admin. Admin will add a sales person to the project. Sales person will talk to the client and give product demo and write comments. Comments should be visible to the Admin as well as Business Development team. Right now it is working only in two level. Need to add another level in between. There are separate php pages in script for admin and staff. Maybe need to read and copy content from these two pages and create a new page and configure it with database. Need to finish this project within one day. I paid $50 for the script. Can pay $30 for this customization. Only serious candidates may apply who have good knowledge of php and mysql.