These are probably what I will get. Thanks!I used these:
Amazon.com: McGard 24026 Chrome/Black Cone Seat Wheel Locks (M12 x 1.5 Thread Size) - Set of 4: Automotive
Amazon.com: Top Line C23705B Black Lug Nut: Automotive
That way if I lose my key, I only have one lug nut to break off per wheel. The rest are standard spline drive.