what width wheels for a 53 chevy coupe?

just curious if anyone know what width wheels I need to run on my 53. I had it mustang clipped and the 14s I am running dont clear the caliper. I am going to order some from the wheel smith but I am not sure what width? can anyone help? I know I need a 15x??? and 5x4/75 bolt patteren and 3.5 offset. Thanks again

 

15x6 should work just fine.

 

will g78-15s fit a 6 inch wide wheel?