Implement SAP ERP to Manpower supply company

What are the SAP ERP modules required to implement Manpower supply company.

Company Business Process: Company hire people outside country. Then company supply their hired people to local company inside the country. It's Manpower supply company.

What are the SAP ERP module required on their requirement?

Example: FICO, HR, CRM

The company want link the employees with client and make invoice hourly basic. Then the company pay salary to employee. Then they want track employee profit analyses report(Ex: Employee Mr.Mark Jonathan work client company 1 month contract. Client pay hourly on Mark Jonathan 25 USD but this Manpower supply company pay Mark Jonathan 15 USD per hour inside their payroll. Now Mark Jonathan profit per hour 10 USD) and each employee link with the client report and employee currently working on which client report and etc.

The above requirement suitable on which modules in SAP ERP?