Customized Ordering Module on Opencart

Hello, I'm running (Posting of a URL with contact details is not allowed in this site as this may result to account suspension by Freelancer.com Administrators) selling saltwater and freshwater pearl jewelry for my uncle who runs a pearl farm. The site is built on an open source eCommerce cart system named Opencart(version 1.4.8b). We want to add a customized ordering function described as below: Scenario A. --------------- Customer doesn't want self-designed jewelry, all they have to do are: a. select pearl type(showing pic when the option is selected, better with Ajax features); b. select metal material & style(showing pic when the option is selected, better with Ajax features); c. select stone material & style(showing pic when the option is selected, better with Ajax features); d. ....any more options... e. system counts the option values(showing price simultaneously when an option is selected), and generate the order and leads the customer to the checkout funnel. Scenario B. -------------- Customer wants self-designed jewelry, design blue print upload required. The ordering processing is shown below: a. select pearl type(showing pic when the option is selected, better with Ajax features); b. upload his/her own design(jpg or gif or png formats) c. select metal material(showing pic when the option is selected, better with Ajax features); d. select stone material(showing pic when the option is selected, better with Ajax features); e. ....any more options... f. system counts the option values(showing price simultaneously when an option is selected), and generate the order and leads the customer to the checkout funnel. Generally, this module enable us to create customized orders of any kind(option names, option pictures and option values can be added without limits). The template can be done by ourselves, you just provide the PHP coding. Reference: [login to view URL] If you are interested, please contact me. Thank you for your attention.