Yes, I see it is hard to find that for our cars. It was not that popular even back then when I ordered mine. ASAP sold it cheaply, then they closed shop. This guy wants a fortune but I guess he knows what he has.
https://www.ebay.com/itm/2854406987...pid=5335822911&customid=&toolid=10001&mkevt=1 There are others and all are around a grand or so. YIKES!!!
Holley owns Hurts now, sells the shifter,
https://www.holley.com/products/dri...anual_shifters/competition_plus/parts/3918794 but no installation kit. I guess Fleabay or a swap meet is your best bet.
You can use a common Camaro/Firebird kit but that won't clear the bench seat. I would be going to buckets but that is up to you.
I have seen some oddball bent shifter handles that move the stick forward a lot. Not sure if that would still work with the bench seat.
https://www.speedwaymotors.com/Hurst-3913780-Comp-Plus-Manual-Shifter,336792.html