If you find one like that, DON'T SAND AND PAINT IT!!!
Get some good automotive polish (not wax), and bring back a shine on the ceramic finish. Yes, it will have scratches and other flaws, but painting over the ceramic coating will just ruin it, IMO.
It is like antique furniture. The scratches and other flaws just add to the character of the piece.
From the photo, it looks basically sound, so all it needs is some elbow grease -- and beer (for you, not the grill).
Take the wooden handles off, give them a light sanding, and use an oil-based penetrating stain on them.
Don't try to make it look new, or you will ruin it, IMO. Let it be what it is, but clean and relatively shiny.
CD