I looked it up on CL and it looks good, accept when I zoomed in on it and it looks like the top of the saddle ways on the right side are painted. Be sure the guards are there. They bolt on the ends of the table. It looks pretty good. Go look at it, check out if they painted the ways, It looks like a dealer and sometimes dealers hire some guy who paints cars and they paint the ways. Also stop at a auto store and buy a stethoscope usually cost about $10.00, take a flashlight and when you get there, have them turn on the spindle and listen to it with the scope probe on the spindle housing behind the wheel guard.
Have them turn off the spindle and keep listening as when it's coasting down is when you can really hear bad bearings. It sort of growls or rattles. Then do it near the back. Then move the table out as far as it will travel in both directions and look at the ways with the flashlight, they should be smooth and look for scrape marks or oil pockets. Do the same with the saddle. Open up the electrical box, the guards on the back and reach into the back and see if you can feel the ways, they should be smooth and no roughness. everything should move smoothly. See if there is a diamond with it to dress the wheel. Take a long some flat bar stock and lay it on the mag chuck and turn it on and try to pull it off. Check it in 4 or 5 places. If it looks good then offer him $500.00 cash and dicker from there. Take cash as many dealers prefer cash. Rich
PS: Check the back lash in the cross-slide feed screw too..should'nt be more then a 1/8 of a turn. If it is a reason for him to lower the price a little. Go with your gut too, watch the salesmen, some dealers are crooked and won't look you in the eyes when they are stretching the truth.