I bought an 18" Hegner at an estate auction for $80. Even though it was about 20 years old, it had seen little use. I bought new bellows, to replace the cracked blows on the machine and I ordered the Hegner stand. The machine has been wonderful. I also have a DW788 with stand, which I purchased in almost new condition, on Ebay for $300.
It was amusing that as I was bidding at the estate sale for the Hegner an older gentleman approached me and whispered, "You know what you are bidding on don't you?" I smiled and said, "Yes." When no one raised my $80 bid, and the auctioneer said sold, the gentleman smiled and said, "You got the deal of the day."
I don't know about the particular model you are looking at. I do know I'm delighted with my Hegner.