Shopping Basket insertion on existing website

I have approximately 30 products on my website and I want to covert the site into an e-commerce site enabling customers to buy product through the site.

Each product will need buttons for a "purchase" and "review purchases" and a PayPal descriptive notice. The purchase link is individualized to each product and includes the price, product code and description which is passed to the shopping basket. The review purchase means the customer can check on the items ordered. They can also proceed to the checkout. These buttons will be placed below the product code on each product page.

PayPal links need to be set-up

Shopping basket links to 30 products be added .

Terms and condition pages need to be added as well as a thanks page which clients see after PayPal has accepted payment.