You could try spacers. I'm personally not a fan of them, but it might be cheapest and most viable solution. Just eyeballing it, probably a 1-1 1/2 inch spacer should do it. Get the type that bolt on to the hub, then have their own set of studs that the wheel mounts to. Those are the safest and strongest when you get out that far. When you install them, have a helper hold the brake and torque them down, then install the wheels and torque them as well.
