I'm looking for a plugin to integrate into an Opencart shop but I haven;t had much luck finding one that suits requirements. Below is a pricing table.

The pricing table shows the price for a product based on its "width" and "drop" measurements. So if the customer on the product chooses the option of "Width: 60" and "Drop: 60" then the price of the product will be £90.00.
Paid for or free, is there a plugin that can do this?
Regards,
Lewis