I'm being commissioned to take some commercial real estate photographs. Theoretically, I know how to go about doing them. I'm pretty well read. But the client (someone I'm loosely connected to otherwise) wants me to offer some kind of a price quote. I can take the pictures, but I don't really know how to price things. I figured I'd swing in low since I don't have any technical experience I can show. Trouble is, I don't know where low is. I'm hoping someone can point me in the right direction, or give me some clue how I should go about dealing with this. So, any thoughts?