I am getting my grandfathers 47 Stylemaster business coupe out of a 45 year storage and the first thing I need to do is get new tires so it can be moved. It has 600-16 on it now. The price of this tire (both radial and bias) is very high. Is there a more modern size tire that would be much cheaper that would fit on the wheels? Also would new tires require the use of tubes, which I assume may have been used? Thanks for the help, and as I proceed with getting the car running I am sure I will be asking many more questions of the members of this forum.