Prestashop Calculator Module needed

For a Prestashop e-commerce website which prints posters from uploaded images a calculation module is needed. Standard formats can be defined in the backend and free sizes can be entered manually as well. Requirements • Platform is Prestashop version 1.4 • Calculator needs to be an add-on module which can be configured in the backend • Module needs to be multilingual (English, German and Dutch) • For development purpose only English is required, Dutch and German translation will be done by us • Module has its own css file (according to the standard Prestashop 1.4 module setup) • Module can be positioned with the standard Prestashop functionality (Hooks) • Configuration in the backend includes setting up a table with predefined measures and extra options • Prices are calculated based on a fixed formula (price per square meter) and for the fixed measures it's possible to manually modify the calculated prices • Next to the prices it should be possible to enter a discount percentage per fixed measure/price • Extra options are manually given a price in the backend • When "Add to cart" all the selected items, including the uploaded image, should appear in the cart See attached file for full details. A quote is needed ASAP. Delivery within 2 weeks.