[Mr70]

There are a bunch out there,usually $50-$150 or sometimes more depending on condition.
I counted 6 @ Jefferson last fall,before I found a floor shift.
Look @ other Monte Carlos in yards near you,if you have em.
They & 1968-72 Olds,Buicks & Pontiac seem to have gotten the lions share,as it was more accustomed to the the luxury A-bodies.
Ignition switches are usually flipped on some of the non Chevy,so might need to install one that adapts to Chevy harness.