Custom Website Back-End Solution

CSV product imports; price markups; tax and shipping (via UPS XML); gateway payment processing ## Deliverables I am running WordPress with Market Theme ([[login to view URL]][1]) and I?€™m not satisfied with the functionality of the software, and there?€™s only so much manual coding I can do myself as I?€™m not very familiar with php. What I need is an easy to modify website, with a way to import multiple product feeds in CSV formats (tab, comma, semicolon, or custom type delimiters). Each feed is different so will need a template of some sort for each feed, with a way to define what columns will be needed, and what they are for (product name, short description, long description, wholesale price, keywords, image filenames, etc.). I will also need the products' weight specification from the feed to be used to calculate shipping via my UPS developer's account (XML access). I would rather have a custom cart than use PayPal, and the cart should link with my gateway (Avalon [[[login to view URL]][2]]) or if this would be too difficult, should provide a secure form for customer's to give their credit card information that I can manually input via my virtual terminal. I have attached a zip file containing product feeds to see as an example.