AC Idler pulley

Anyone know where I can get one of these idler pulleys. On a '69 Cuda 340 with AC. I cant find it in parts book.
Thx
JimView attachment 1715488112
The bearing shot craps in mine 4 years back.
Been running without it ever since without issues, just need to find the right length belt.
I believe that idler was a factory over kill.