Another tire size question

1974 duster, disk brakes, stock 8.25 rear

Stock cop wheels from an 80s dodge diplomat.

I was thinking P215/70/R15....it seems to be a Popular and easy to get size, affordably.

They have that size in hankook optimos as well as a few other cheap *** brands readily available.

Application: 100 % street car, no racing and no track handling needed. Drives to church and the candy store and many many highway miles on the 35 mile commute to work and back.

What do you guys think, is that a size that will work.?
Tons of room for those