Yea most likely the chairs and benches will be sanded down as well just because they matched what the table use to look like.
So you think for the chairs just to have the seat stains and everything else (legs, back, arm rests) black? What should I do with the benches? Sides and back black and just seat stained?[/QUOTE]
Yes, or you could stain the arm rests on the chairs to match the seats. Wish I had a pic of my sisters set. she does not have arm chairs so not sure which would look best. This is just my opinion, so make it to your own taste. The black combined with the stain is a really nice country look. Look at dining sets online to get a better idea of what you like. and make sure you post a pic when you are finished!