Question 01. What do I need to give you to quote my PCB assembly service?

The minimum we need is:
.: Quantity of boards for assembly.
.: A complete Bill of Materials (BOM) with manufacturer's part numbers and/or a good description for every line item.
.: Any special assembly notes or requirements such as who will supply what components, lead or lead-free etc.
.: If we are to supply bare PCB's, a full set of gerber's with drill data.
.: Any additional electronic data is helpful though not required (Assembly drawings, PCB files i.e. Altium, Mentor Graphics, Eagle).