Develop a calculator for WordPress

You need to develop a plastic window calculator for WordPress with a beautiful design.

The calculator should allow:
1. Specify the material - plastic or metal;
2. Select the type;
3. Specify the size of the window.
4. Select a profile;
5. Select an additional service;
6. Choose the type of window;
7. Enter the coupon code and next to the last button - Apply;

8. In the lower window should be the final cost, and if a coupon is entered, then the crossed out price and price with a discount.
9. Form for sending an application with the indication of contacts;

10. There should be a simple setup or plugin for Adminka with:
1. Change the formula of the window tied to the area.
2. Adding and changing the price of profile selection
3. Addition and change of price (additional). Services
4. Add the removal of the text of the promo code and change their percentage discount. For example, text - plastic20 = 3% discount.

I like minimalism in the interface.
There will be no backgrounds other than the pale frames.

Work period - until 05.11.15 you need to submit the site.

Payment is only in fact, but prepayment is possible - 1000 rubles, if you have a high rating.