Wheels questions!

Hope all are well!

Looking to go steel wheels, no hub caps now on the wagon. I was thinking 255 60 15 in the rear, 225 60 15 in the front. If I get a new "road Wheel" for the back, 15x8, should I get 4 or 4.5 inch backspacing? I also saw a cheaper mulitlug option at 4.25. If I get road wheels, I can then just reuse my stock front ones. IF I did go with the multi bolt pattern cheaper ones, would the 15x8 4.25 BS not fit on the front?

Any help is appreciated!

Thanks!
Author: Kramer79