Quoting System in MS Access

We a looking for a quoting system for a small fabricating company designed using MS Access. This will require the ability to calculate area of up to 12 pieces in inches and then converted to square feet,then take the price of a given material to come up with the price for that particular "job", then have optional extras and addons that would be checked off or have a price inputed which would be totaled and give you a grand total price. We need to have a password protected setup screen for adding customers, products, prices etc. This is a fairly easy project to complete and should be no problem for an experienced Access designer. Please bid only if you can do this in MS Access! Do not try to convince me to use VB, C#, C or any other language it has to be MS Access. If you require more info, please post on clarification board. We will need to see examples of your work and would like a realistic timeline for completion. Our budget is about $500.00USD