[mustangII460]

Personally, Id switch to 5 lugs before I went wheel shopping. If I were going to keep the car.

Heres a budget swap to 5 lugs.

You can use the rotors from a mid 80's Lincoln Mark VII (85-91) Rotors should be $45 bucks or so ea. new. DONT SAY CONTINENTAL cause the price jacks up.

To keep the stock rear wheel offset and drums, the '83-'92 Ranger/Bronco II Left (driver) side axle (29-5/32") Junkyards work fine. They havt to have the 8.8 rear.

Then after the swap, you have a whole lot more choices plus 5 look cooler than 4. As far as busting a 4 lug, your not going to do it anyway.

You may be able to score a nicer wheel for less money.