Someone from Headway Themes pointed me in your direction. I have a client who wants to try and recreate this "me your own rug" option on their site, and I was told it might be achievable through your forms. The total price changes in real time as you make a selection/choice.
This is the website in question that she has seen and wants to have a similar option on her rug site:http://www.alternativeflooring.com/rugsrunners/make_me_a_rug
I really hope it is possible with your form as I am running out of ideas on how to implement.
Thanks so much for your time