Dynamic Product Fields Module Nulled will allow your customers to fill in fields to modify the product and get the actual cost directly. If you sell products that can be tailored specifically to each customer then this module will help you offer a dynamic solution where product prices are calculated on the fly.
You will have absolute control over what fields to display and over the price calculation method.
The dynamic price will be calculated from the user input with the help of a formula that you can easily define.