Custom checkout for my webpage

Need to create a custom 'checkout' for my html pages. (2 languages!) The orderlist is visible all the time (ajax) but can be hidden too. It will show the total cost of the order depending on discount, shippingcosts and payment variables. Several options will be available for this. Customer won't need to login or create account. Just checkout and fill shipping info each time he wants to buy small stuff. 2 payment gateways will be offered....paypal and ideal. Each order confirmation is sent to customer and seller. It must be cross-browser compatible. Conditions: - Bid only if you are good with php/ajax/javascript. - You need to be a fast coder, job must be done within 2 to 3 days. It will require your full time! (many variables!) - I will assist you during those 2-3 days! Job gets cancelled if not done by end of 3rd day. (because i won't be available after that) - Show me any job you've done that shows you master php/ajax/javascript! (this will convince me better) NOTE: Bid by mentionning "ajaxphp" to distinguish you from automatic bidders.