Help me ID these wheels

A 15x8 with 4 3/4 bs will put the tire the same place as a 15x7 with 4 1/4 bs, just wider thru the section.
You might wanna look for a 15x8 with 5" bs.
Wouldn’t a 15x8 5in backspace be overall too wide with a 255/60r15 on a 71 scamp?