OpenCart Weight Based Prices Extension Develpment & Customization

We sell weight based Gold/White Gold/Silver jewellery products. We are looking for OpenCart Extension with the following: • Metal prices will be displayed on the header of the online shop, in a table format and match the theme style. • Admin will enter or update prices in the back-end with minimum inputs (one click - done). • Admin interface has to be very clean and simplified. • Admin will enter only the unit prices ( /gram, / tola) for the given metal (Gold, White Gold, Silver) in certain carats (18ct, 21ct, 22ct, 24ct). Then this module will calculate and update all the products prices by their ‘weight & carats’ to the respective categories (e.g. Gold Jewellery, Silver Jewellery, White Gold Jewellery etc). • Admin can also update prices by categories (Example: we are selling gold but on the other hand selling silver too. So the unit prices are different. Admin will then update first category which contains gold products, then will update silver and white gold. • There is an Extension available in OpenCart, if its workable with modifications, we can buy that, or the developer can custom code it. ([login to view URL]) Other Customizations: • Customizable Customer greeting message in Accounts Page (Welcome ‘Mr/Ms Last Name’) • Customizable Customer greeting message on the header (Shop Front-End) • Show prices in two available currencies (Main selected currency price in Bold & 2nd in brackets) • Weight in Grams and Tolas are displayed with each product • Product prices are based on weight • Display weight on each product • Price Filter Slider to add on left column (Extension will be provided) • Calendar based shipment (Extension will be provided) • Custom Email templates (Extension will be provided)