Build an Online Store - Payment gateway integration

Precurser: In our past project, since Woocommerce plugin is structured with multiple pages, each one to serve the purpose of product, cart, and checkout. Our purpose was to merge the functionality into 1 web page. We used existing platforms to build one web page for one product that serves the purpose as a landing page, product page (since we only have 1 product) and a checkout page. Currently, our website is composed of 1 landing webpage that processes the order selections (color/text engrave/image engrave) using custom code and the billing is processed at a crowdfunding site. Therefore, the order selection and billing transaction are two independent process. Objectives: Change the custom code so that the website takes order selections (color/text engrave/image engrave) and then process the billing transaction using (Moneris and Paypal). This implies that WooCommerce's product page (custom code), cart page, checkout page will need to be activate again. all pages must support (except for the custom product page) Liquid/fluid layout and responsive design (mobile browser – iphone, android, blackberry). Candidate: -> Developer must be proficient in PHP, JavaScript, CSS, responsive design, WordPress, and HTML. -> Start Immediately and Time crucial project -> Confident to deliver the requirements on time (Time Crucial project) -> Strong communication skills and responses in a timely manner -> Build a long term professional working relationship with their clients -> Extensive knowledge and experience in Wordpress, Plugins & theme customization -> Worked on WooCommerce, Moneris, Payment system integration -> Worked on responsive website, liquid layout and mobile browser compatibility -> Believes in excellence and perfection; no compromises on quality PLEASE PROVIDE THE FOLLOWING DETAILS: -> Budget and timeline -> Company landing website, if you operate a company -> Only 2 website example of your past clients with development of Woocommerce, Moneris, Payment system integration -> Two reference contacts for the two previous experiences