You can get some itemlvl 25 gear from BG-creaters, or u can search on AH some greens with itemlvl 24, so u can easy upgrade the slots with Itemlvl 21 gear. I personally prefer https://www.wowhead.com/item=5961/dark-leather-pants with agi/crit enchant. For your back is an +3agi+7amor enchant BiS...