Data point, though a bit dated now; I picked mine up in June 21 for $8500. Some standard Midwest rust and needs some of the regular maintenance items, but all together I think I did ok.
If I were to sell I think I'd just wire in my ARB lockers into a factory locker dial (using the Wits End kit). Would help it sort of "check" the triple locked box.
I've got front/rear ARB lockers in and have been curious about this as well. I've read the arguments for each and it doesn't seem like there is one straight answer.
Well don't take my comments as criticism because that definitely wasn't the intent! While its clear from the comments you have a passion from the machines, it's also clear you have quite a bit of knowledge about them and the insight you're sharing with the sellers and/or the perspective buyers...