384201 Integrate Paypal in WP plugin

Hi, I have a wordpress plugin which is going to be used for ecommerce. Currently the user uploads the product details such as name, price, etc and this info is saved to the database. I need paypal integrated into this plugi so when paypal is chosen as the payment gateway the users are given a purchase link that they can paste into their website so customers can buy the product. Features that I need included are: Single payment purchase Subscription purchase Trial period and price Cancellation redirect Thank you page Thanks Paul