Front brake rotors

Rotors are sold separate. You press off the old hub and mate with the new rotor. It's a good deal — saves you from doing bearings at the same time, though repacking is a good idea. The fact you have all RH studs just means someone else replaced rotors earlier and decided not to deal with the LH lugs any more — not surprising considering the age of the car.

BTW, you can buy very nice slotted cross-drilled rotors for basically the same price as the made-in-India stock OEM replacements, if you want an upgrade.