I have what I believe is a 71 date coded bumper jack for a Cuda. Have a few questions........my mast is the tubular type, is that the correct one? Or, is it supposed to be the solid mast with the "teeth"? Either way, it's the one I'll be using. Also, what color is the mast supposed to be, silver or gold? I'm going to zinc plate the mast and want to get the correct color. Where is the best place to get one of those inflater bottles? Thanks.