Concrete5 CMS customisation - price grid

This project will be easy for a PHP programmer with experiencing working with Concrete5. Please only bid on this project if you have experience with Concrete5. Requirement: Customise the "eCommerce" add-on to support: - Grid-based product pricing (eg. height x width) - Import & manage product price grids (from CSV or XLS format) - Support the addition (or subtraction) of a fixed amount and percentage amount from a selected price grid on a product-by-product basis (eg price = XYZ grid + 5%). The standard "eCommerce" Concrete5 add-on will be supplied, if required (<[login to view URL]>).? ## Deliverables Please see attached document for more detail of the project requirements as well a sample price grid.