Custom Product Website & Wizard

Online and phone-ordering retailer is seeking a custom product design wizard and e-commerce site to sell a niche line of products. The ideal solution would be a complete website built around a single-screen step-by-step wizard for designing and customizing products with customer uploaded or stock words and/or artwork. Examples from competitors can be provided, but we want something unique and flexible to our production needs. The parameters for the application design are as follows: 1. Live preview of final product and pricing 2. Gallery of examples (images or product can be provided as needed) 3. Ability to customize starting product, color (multiple presets along with ability to enter your own color) and size from several combinations 4. Ability to use custom text with predefined assortment of fonts and limits based on product and size selected 5. Ability to upload custom logo to add to text – including conversion of file to monochrome if needed 6. Backend ability to generate production-ready artwork file for production purposes which will match preview and meet production standards 7. Product options must conform to production requirements (maximum text size, etc) 8. Multiple additional options (i.e., filled text, glow in the dark) for additional per-unit cost 9. Ability to use the same artwork/wording to order multiple base colors (same message on 5 different base colors for example) 10. Automatic quantity discount calculations 11. Ability to change pricing structure down the road and add or delete options and base products (no hard-wired sizes, shapes or options!) 12. Flexible display sizing on web to allow for different layout integration options 13. Full markup for CSS styling and customization to integrate fully with website look and feel and to allow future interface updates 14. PHP, MySQL, AJAX or similar – no Flash 15. Cross-platform compatible, no plugins to download 16. Wish list items (nice but not critical): a. Ability to “save” a design and re-use or come back to it later. b. Pre-set combinations of options (color, logo, message) to be further customized or personalized c. Text comments/notes field and “submit for quote” button to submit for further custom work by the company without requiring a transaction d. Expedite option that will generate additional messages to company staff for faster order processing e. Backend integration with shopping cart system (prefer Magento version 1.3 and up) for product purchase and shopping cart functions