Hello friends,
Just wondering how can i make a quote form like that

Best way to find out is to view the source code of that page to see how they did it.

In the end it's just a form that updates itself based on your choices. Most likely it's using JavaScript to keep the running total for the price and to update the form fields. The JavaScript code will either be in the source code or there will be a link in the source code to the JavaScript file used.