custom vinyl lettering creator on magento website

I want to create dynamic png image generation for a vinyl lettering website. It will need to have similar functionality as [login to view URL] Requirements 1. dynamically generate png image using color, font files, and user input text 2. dynamically calculate the price of vinyl lettering using our supplied formula 3. dynamically add the custom product to the magento shopping cart including all the custom variables of color, price, font. and phrase. I have already programmed the basic functionality of generating a png image and displaying it on the web. Existing work to be completed is creating the front end user interface using javascript/ajax/css to make it user friendly and also integrating it with magento so it can be purchased Attached is the programming that is complete