I just bought a cheap rotor 12 bucks from rock auto 96 Mustang iirc - then banged out the stock studs, and clamped the 5x4.5 rotor on top of my other brake rotor and drilled in the drill press. Did the same thing for the rear hubs, but with them i actually did 2 tac welds to hold in place where i wanted and then when done everything was good as I drilled those two last, and I put the wheel studs in the hub and tightened them down so the last two bolts that i had tack welded I just drilled them out last and it drilled through the tack welds. So instead of spending 150 or whatever it was I spent essentially nothing as I used the rear rotor - which I didn't expect to do as I thought i would ruin it.