will 3 1/2" offsets fit? Alum slots on 74 Duster?

Ok- seems like everything is going against me here on these rims. I think I will opt out on these then. I have also seen that there is not alot of tires avail for the 14" rim anymore. They are out there but are getting rare. Im leaning on 15" ralleyes and maybe with a spacer in the rear. I have a yellow car with black side stripes and black twin racing stripes on hood and trunk. I dont know if I want to paint them yellow or black. I dont if the argent silver would look good or not-Im thinking not. Unless I can find some alum slots with 14x6 up front and same or 14x7 in back. I dont mind sticking with 14"s if I can get them in slots. I have 14" ralleyes now.