Create an Proposal (Estimate) Form

I am a contractor who visits client's home to provide them estimates for their swimming pool remodel project. I would like to create a "form" that I can use to enter the various things the client wants, along with measurements - and this will generate an estimate to give to the customer. for example, I can input the lineal feet of their pool, and Creator will calculate a price (based on the standard pricing I entered into a table). Can someone please help?

thanks!