Create a Cart page in a existing theme

Need a cart page in a existing wordpress theme where buyer can select payment method from 3-4 gateway. ## Deliverables Need a cart page in a existing wordpress theme where buyer can select payment method from 3-4 gateway. Theme has already 3 payment gateway - Paypal, [login to view URL] & dineromail.com. Need to add NMI gateway which is very similar with Authorize.net. In cart page, buyer can able to add/remove products and pay for all at a time. After confirmation, I will give more details with theme on my server. Theme address: [login to view URL] Its very small & simple work for those who already do this type of work. Message/Bid requested from serious person who are able to do this job. Before bidding check theme stated above. Thank you.