Let’s go with 72 (the one with the horizontal fan controls)Which year did you need ? Both are different.
Can you message pics and a price?I have a nice 72.
What is the purpose of the vacuum lines in the 72? The ones that mount below the electric controls?Here is a link to the controller.
https://www.forbbodiesonly.com/moparforum/threads/72-a-c-controller.169433/
71 and 72 have the same fan switch. That changed in 73.
Difference is 71 controls a vacuum operated water valve and 72 uses a cable.