If one is looking for a shooter, and is in no hurry, it is possible to get one in the $600 to $700 range, as evidenced above.
With EXTREME patience, and with a good education on the product, it is possible to find all original guns for fair money. I have three of them, with $1,500 total investment since 2012. One of them in near mint condition might just bring close to the total if I chose to put it on a national auction site. The others are easily $700 to $800 guns in good condition.