Custom Lettering Design Tool-extended

I need a custom lettering tool for a Zen Cart website. It must be integrated to zen cart and allow the user to "add to cart." It should have the following functionalities: 1. Enter text on multiple lines 2. allow users to view and select the font required from a loaded list. - This will have 100 or more fonts. 3. allow users to align text i.e. left, right or center 4. allow users to reverse the text 5. allow users to arc the text - this is a luxury, not 100% necessary 6. allow users to specify a height, which will in turn approximate a width based on the font they choose. And then calculate the cost based on the width and height. 7. switch colour preferences using a colour palette 8. allow user to switch the background colour If you are unfamiliar with the above tool, I can show you some examples. An additional function I would like to include, depending how difficult it would be to implement is to allow the users to have 2 or more fonts within one sentence. We can discuss the practicality of this. I look forward to reviewing your bids!