Can't go wrong getting it graded in my opinion. Some say don't grade a 1/1 but I prefer to have the card protected for both mine and the buyers piece of mind that they are getting what they paid for. They buy 9 they get a 9. They can't be disappointed or complain about a soft corner or a mark on the card etc.
SGC is a good idea - I'm a PSA man but I think it will look nice in the SGC slab with the Black of the card matching the slab. Plus you won't get up charged a massive fee (like you might with PSA) and you'll get it back in a reasonable time.