Excel Programming for Print Estimating

We are looking to produce an excel worksheet to use for Print Estimating for our printing company. Print estimating requires estimating 4 to 6 different parts of the print job and then adding them all to produce a cost. Then adding a profit margin to produce the selling prices for a range of quantities. 1000 brochure, 2000, 5000, 10,0000 etc...... We will tell you exactly how the formula that is to be used for every section and you just have to organize it , use the formulas and create drop boxes for different paper stocks , and calculations etc.... Its not a complicated job, but it needs a very good knowledge of excel. The project will require a lot of communication between us to make sure all the concepts are understood clearly. We want a clean project with easy to use date entry and drop boxes so we can use it easily and simply to produce printing quotes for our customers.