I got some pictures from the owner today. It does indeed have a raster, but a very crooked one. Also looks as though there is a slight ion burn. Otherwise, it seems to be in stunning condition indicated by the pictures.
Since these have electrostatic deflection,how hard is it to restore the sweep to normal? I've never toyed with a set that uses electrostatic deflection before....
I get to see the set in person this saturday.