While I have not done this from BWV, I have done that at OKW thru the Conch Flats store. They even provided boxes and tape to package up the items we wanted to ship.
They were able to weigh the box and simply charged the billed amount to our room statement. It was a simple process and we've done it a couple of times.
I'm sure the Screen Door Mercantile at BWV can help the same way.
Good Luck!