Code me a finance system

We have a brand new website built in PHP with a MySQL database. For this particular project we need you to code the finance section. Some of the work involved will require some basic maths skills, cronjob related emails and basic paypal integration. I have uploaded a spec sheet detailing all the work that needs to be done. Please do not bid unless you have read it and are confident you can complete the work within the deadline. If you'd like to have a look at the pages you'll be working on, the login for the site is rac@[login to view URL] and password is rac. Feel free to ask any questions.