Not exactly sure who bought it at Indy, but I recently heard it was a classic car dealership from Pennsylvania looking for inventory.
The car came back to Florida for the 2024 Mecum Kissimmee auction, and sold on January 13th for $ 87,000.
https://www.mecum.com/lots/1109604/1970-plymouth-road-runner/
It looks like they didn't put as much effort into taking nice photographs, and the car no longer had its yellow cap reproduction battery.
I've heard that cars sell for more money at the Indy auction, which is why I hauled it up there instead of waiting for the local Kissimmee auction.
Glad I did that!

I hear that the car lives in Florida now, where the driving weather is nice all year.