The ones I've seen for sale are about $400 on the cheap end, $600 on the high. I did see one for $350 but it was in SC. This one is also 15 minutes from the house.
I usually never pay face value and with no remote I will definitely take that off the top.
All good. My view is also clouded due to where I live (on the edge of the Ozarks). Wheeling has been popular here for a very long time and 8274s come up fairly frequently. I have an app on my phone that I use to constantly search for winches (and a whole lot of other stuff) for about a 1 1/2 hour drive in any direction. I normally buy 8274s in the $200-$250 range. While that seems low, I also buy them knowing that they need things. Cable (or rope) is always a given, maybe solenoids, occasionally a motor (which brings the cost down further). I figure, if I'm going to rebuild it, I might as well save one that most would give up on.
On average, I find one for sale that meets my low end criteria once every couple of months. Nice ones (like the one that you're looking at) with about the same frequency. Put together it's an availability of about one a month. For an item like an 8274, that's pretty common (I also snatch them up quick when I find them cheap). I know that you guys don't run across them that often.
I would have figured a fair price on the one you're looking at about $400-$425, or a steal at $350. The mounts are all but impossible to find used and oddly, when you do, they tend to be cheap (I gave $20 for mine).
You can get a great deal on a control unit (solenoids and controller) from Pierce Sales (I recommended them to you for your cable on your 8K planetary), but the plug won't fit the Warn Solenoid cover without some surgery. The solenoids won't fit either unless you change up how they connect (not horrible to do). I believe the solenoid box and controller was $60 from Pierce which is about $10 less than a used Warn controller (just the controller) on e-bay.
I've used their solenoids quite a bit and have yet to have a failure or hear of one on the ones I've sold. I haven't used their controllers (I'll be using them on both Planetary winches once they're done), but how bad could they be? It's just a double momentay switch and some wire. If you go that route, you could use the "trailer plug" style set up like your existing winch has and just ditch the Pierce plugs (as you know, the trailer plugs fit well in a Warn solenoid cover).
If you go that route, I'd recommend scuffing and painting the female trailer plug. I started doing that after surface rust issues started cropping up.