Oh god, level 70 tailoring. I finally got my main's Spellfire set, and it was painful. So congrats!

Your gear looks fine to me, though you should probably prioritize replacing those level 63 quest leggings. I'm doing easy heroics with no problem in gear that's entirely pre-Kara gear (http://www.wowarmory.com/character-sheet.xml?r=Steamwheedle+Cartel&n=Velethura), so yours should be fine for starting the harder set.