Run Forrest, run!
Whatever the price is, I'm confident you can find something else that will cause you much less heartache. Anything I see that is listed as "Untested", I assume to be "BROKEN". It's a way to parse words to cover your southside when selling something that you know doesn't work. My price-point for "Untested" is 25% of list.
If you want it for a Shelf Queen or for spare parts, go for it.