Hello guys. My double bass arrives tomorrow and it comes with the bridge loose and I don't know if the strings are on the bass or not. Also I don't know if the tail piece is also loose or not. Any advice on how to set it up? I was thinking of putting que stock strings myself and let the local luthier install the new Spirocores. I want to do a professional set up, but I don't want to wait until that to play the bass. Thank you for the help.