Paypal intregation to Wordpress site

I have a custom wordpress site. I did a lot of the work myself and am very familiar with the work needed and the technology. For someone who has done this in the past, this is not a complicated task. Please READ the complete requirements. This is what what I need I have a giftcard page with 4 gift card button ($129, $199,..etc) that customers can buy The giftcard page has some form fields that the customers fill out (name, address...etc) I want you to convert those buttons into a PayPal checkout button, so customers can pay with paypal. I have order page that has form that my customers fill out. At the bottom of the form, are 2 options and then a submit button Option 1 is to pay in cash at the time of service Option 2 is to pay with PayPal now I want you to configure the submit button so that when a customer clicks on option 1, I get an email with all the form fields When the customer selects option 2, I want you to take them to the paypal site so that they can pay and complete the order. The customer must then get a receipt email with order summary. I should also get an order summary once PayPal order is complete. Please note: that there is already some php code in the page template to perform the functions above, but it is not working. I have a IPN setup and also have a sandbox PayPal account setup for testing. Please make sure that you READ the complete details above and also ask me questions before hand.