1982 Olds Cutlass Cruiser wagon RWD sway bar

I put A Rear Sway Bar in my 81 El Camino, The bar came from a Monte Carlo. The bar was bought used almost 20 years ago, for $ 10 The bolts and spacers were purchased new from dealer approx. $ 10

New Coil Over Gas Shocks, and I had a smooth riding, good cornering car. All for under $ 100 I'd do it ! Measure to see space between rear control arms. Cop Cars and Taxis may have a similar part. I'd get the mounting hardware from a vendor. If available, a Monte / Gran Prix / Chevy / Buick GN bar should fit no prob. Unsure of full size, told both fits / too big ???

Thank you