Just received my Eros 2, initial impressions very professionally packaged/prepped. The top plate is a straight grain finish, I would prefer a swirl pattern. Not a big deal but if it is something that I can do myself..... ;D
I think you are going to have a tough time hiding the existing 120 grit grain pattern with a wire brush. It would probably be worthwhile to sand it to a smooth 400 grit finish before attempting the jeweling.