Extensive Form Plugin For Website Estimate?

Hi,
I'm looking for a form builder plugin which would be suitable to create a estimate feature for car repairs.

My client has given me some links to a existing feature on a current website which is what there ideally wanting to achieve.

Any suggestions on plugins that can create the desired feature would be greatly appreciated.

-Thanks

http://www.abluk.com/get-a-quotation

http://www.abluk.com/get-a-quotation?view=images