What kind of TIS wheels are you referring to? I just saw a selection on 4wheelonline and it might be one of the rims that I saw.
This photo brings me back to the past.Had some knock offs of the Crager SS wheels on my 64 back in the 80's. They looked cool with some black wall Nitto tires (I forget how wide, but they were fairly wide). But they tended to cause vibration. I suppose it was because they were cheap knock offs with oval shaped bolt holes. But they did give a sporty look to the 64, which is not easy, since it is perhaps the least sporty looking of the 58-64 series.