Old style crager wheels and tires fir my duster. Opinion needed

If they hit the leaf springs, that's an easy fix: spacers.
If they hit the fenders, no fix for that.
(Theoretically, if they hit his springs, he had too much backspace. Four inches? Too much? That's hard to believe.)
And at this point in time, I wouldn't spend ten cents for 14" tires or wheels.
I found out that they were fifteen by ten with a four inch backspace with an l sixty tire