Fenton Gyro slot mag wheels for 68 fastback project

Thanks for the input guys, I will check the B.F.Goodrich for sizes first. I think I want to stay away from tubes if I can on this car. Might have to go with the sportsmans or N 50s to get something that fits the width though.
I do think when these wheels were made they would have got N 50s or slicks.
It seems most of the newer radial tires with any width I have seen are for 17 & 18" wheels.
And have a shorter sidewall.