That's a really great looking Dorff! And, the Wisner is pretty nice as well!
One big advantage in going with a Dorff is that they can always be repaired or restored to new condition by either Richard Ritter or John Deardorff. Both are very reputable for quality craftsmanship.
Secondly, Dorffs have been around a verrrrrrrry long time - that has to tell you something about their endurability and durability!
Lastly, if you ever have a problem with the cameras' cosmetics (or, you're terribly bored during the winter months and don't want to go out shooting for the duration,) users have said it's relatively easy to take the hardware off and refinish it. Then, you've got a brand new looking camera!
I've not seen or used a Wehman camera so I can't make any comments on that suggestion.
However, I believe your question was a matter of choice between the Dorff and Wisner.
With no disrespect to either listing sellers, personally, I wouldn't be bidding on either of the cameras. I think they're a wee bit on the high-priced side of the street! I'd wait for another Dorff to come up on the block!
[BTW, I just recently won the bidding on a beautiful Dorff 8x10 for a very reasonable price. It's a great deal in light of how nice a condition it's in. If you'd like, please feel free to check it out under my name on e**y.]
So, deals are still out there to be found! And, like most of these situations, it's simply a matter of patience, patience, patience!
Good luck!
Cheers