Custom Decal Maker

Hello, I am the owner of www.stickerart.com.au. online maker of vinyl decals. I need a script for customers to create custom decals online, this is to be implemented into a osCommerce shopping cart. Customers would be able to input sizes, colours, text, effects and images which will then create an image and price. Price will be determined by the Size, font, colour, effects and colour(s) chosen. The script should have the ability for the user to upload their own fonts or use fonts from a library from within the site. It should also have the ability to chose the following effects...Shadow, Outline, Contour and choose a different colour for the effect. The background colour should also be selectable for the preview. The ability to bring in images from our online catalogue and add text around them would be great also It must be also easy to modify the image from the preview if the customer wants to change something. Once the customer is happy, the item will get passed into the shopping cart and the image will will save with all the relevent information. Example can be seen here: [login to view URL] [login to view URL] These examples don't do everything that I need done. Thanks!