Create a shop for gamble script sales (Magento)

Hello, freelancers! We need to build a great usable and attractive web-shop. We will sell gambling scripts (poker, roulette, slots, betting games), both client and server sides. So we need to have composite items with complex hierarchy. We need PayPal integration, Visa/Mastercard, WebMoney, e-gold payment systems to be integrated. We will provide our Master Account information for your comfort. We need a modern and high-quality design. High level of usability is a must. Website should have a good look on mobile devices. Technologies: we accept html5+css3 use. It would be better if this shop will be magento-driven (we are familiar with it).