How do you send the cash usually? Courier? Postal mail? First Class? Priority? Express/next day? Something else? Does shipping cost extra?

Do you insure the cash / bullion that you send?

Are you licensed as a money transmitter and/or money service biz with FinCEN?

What payment methods do you accept in exchange for bitcoins when you have BTC for sale? That information appears to be missing from your thread. Or maybe I'm just missing it. 

Thanks for answering, in advance!