I went and looked at the actual posting. That might just be a Model H. The clamps look newer and the arm might be longer.
I wish I lived in the Atlanta area! There appears to be really good tennis there and deals like this are ridiculous! I just want a new stringer that isn't glide bars because I do string fan pattern racquets from time-to-time and all I've ever strung on was a Model D w/ the H upgrades I wrote about and my current newer machine. It's a Prince P200.
I just started stringing 3-5 years ago.