Compared to the new no-lock Model 10 Classic (SKU 14074) which are generally going for $820-900, I might be inclined to look for a vintage gun instead. I do have a Model 10-6 with obvious holster wear, but a very clean bore that I picked up on GunBroker for $300. Unbeknownst to me when I bought it, it had a broken DA sear pin, which was easily replaced by me. An extra few hundred can get you one with less finish wear.
That being said, if you don't care about the lock and are fine with the heavy barrel, the previous Model 10 Classic (SKU 150786) can be had for under $650.