spring relo kit???

I am trying to run wider tires on the rear end of my 72 dart to give it that pro street look. I talked to a guy at a local show and he was saying if I get wheels with a offset that will let me get about a inch away from the leaf springs I could run them. Excited i went home to see were my stock wheels and tires were in comparison to the leaf springs. not a whole lot of room. Have any of you guys done this kit? I would love to have a 4 link set up with a narrowed rear end but the money is just not there. opinions?
thank you.