opencart, checkout

Need a really basic opencart website to sell my book. 1.The $ amount in the cart on top of page needs to be updated when customer taps buy now. 2. Make mobile site look like website. Instead of Categories showing in mobile site, needs to be Buy Now, Read Me First, The Arrival, Book Exchange, like it is on website. 3. Delete steps 1, 2, and 4 of Checkout. All I need is the customer's mailing address and email. 4. Give me a simple way to create a csv file from the MySql db to create mailing labels. thanks