It depends on how hard you're willing to look and how much work the (used) revolver will need. And don't ever count out plain 'ol dumb luck.
My 1860 was $150 (Gunbroker.com), was claimed to be unfired, but had a nipple shaped indentation in the hammer face. The first day I had it, the hand spring broke. I brazed a piece of hacksaw blade to repair the hammer face, replaced the springs, screws and the hand, and then I found and fitted a shoulder stock to it. Since I was gonna go over the lockwork anyway, this was (at least to me) a great bargain. This is a 25-year old revolver that's nearly identical to the one I had in my twenties (three years younger, same mfg.), and it doesn't have any of those icky stampings on it, just the proof marks, so you understand why I think I got a bargain.
While I was waiting for the replacement parts to arrive, the Classified Ads came back on line, and I scored an extremely nice Remington 1858 for only $125 from another Forum member. All I've done to this revolver is to take it apart and clean it, because that was all I could think to do to it. Locks up like a bank vault. Well, truth be told I did clean the burrs off the sear, but that's it, I promise!
I spent $275 on guns, and another $32 on shipping, so for approximately the cost of a new-in-the-box Uberti (and the @%^#! sales tax), I got two revolvers. I like working on my stuff, so I'm Officially Disappointed that the Remmie doesn't need any real work. I'm going to ream out the cylinder chambers, but that's all.
Be patient. What you want at a price you're willing to pay will eventually show up.