How much does the waterline that feeds the ice maker in your freezer cost? How much does the sound system volume control button in your vehicle cost? How much does the cardboard tube on your toilet paper cost? How much does the solder that fuses your copper pipes together cost? How much does the display screen on your cellphone cost? How much does the plastic bag that your bread comes in cost? The answer is, it doesn't matter because none of these things are options that can be removed from the final product so there is no need to disclose this information to your potential client. The client isn't buying a water line or a control button or a cardboard tube or solder or a display screen or a plastic bag. The client is buying a refrigerator/freezer and a car and a roll of toilet paper and a house and a cellphone and a loaf of bread. Now if you want to give your client different prices for different options because you failed to get your potential client to commit to a an exact project, by all means, provide them with the different prices for the different projects. But there is still no need to list individual prices. All you have to do is prepare a proposal for each version of the project and have one total price for each version of the project. Your job prior to preparing your proposal/proposals is to determine what your potential client is considering for their project and how many variations of the project they need to see a price on to make their decision. Then it is your job to prepare an individual proposal for each one of those variations of the project and sell them one of the projects. There is no need to list individual costs of line items. Flagstone patio $xx,xxx Flagstone patio with fire pit $xx,xxx Flagstone patio with fire pit and pond $xx,xxx Which project would you like to do? Try it, it makes the buying decision sooooooo much easier for your potential client because all they have to do is justify the cost of one of those projects instead of having to justify each and every cost of each and every line item for each of the three proposals.