aluminum drw on 77 f350
 

I have started the tear down on my 77 f350 4x4 Drw and I need a set of tires but it has 16.5s and I am wanting to go back to 16s. I have 2 good 16in coined rims so I was thinking I could use them on the inside and get a set of aluminum wheels for it. They are about as expensive as new steel wheels so what would I have to do. I've got a tight budget on this truck because it has to be completely redone. Any help would be great