Honestly, for that price it would be hard to go wrong.
Worst case (and I hate to even say it) would be if the ways are very terribly worn.....but then you my still make that money back by parting out (chucks, faceplate, gears, steady-rests, etc.)
My (SB 9-inch) ways do have a slight ridge near the top of the inverted V, and the carriage is a little looser near the headstock end, but I'm still able to do everything I want to the required precision.
From here it looks like he over-oiled it before taking those pictures.
Best of luck!
-brino