My Helm Makes me QQFollow

So I think my shaman has come along rather well still need some upgrades here and there. My shaman has lots of the badge gear which is light on crit but gave me some haste which I am having some fun with.

My main issue is my helm, I have been using T4 helm for quite some time and really really am getting sick of it, i think the rest of my gear has far surpassed T4 quality except the stupid helmet.

here is a link to my armory:
http://www.wowarmory.com/character-sheet.xml?r=Azgalor&n=Longinous

I am considering going for the engineering helm but it would cost me skinning, and I would have to spend money to level since I refuse to drop leather working (for armor drums and kits I have and make).

here is the engineering helm:
http://thottbot.com/i32476

if i ever got lucky i could make this eventually:
http://thottbot.com/i34355

or I could be patient and just wait for my T5:
http://thottbot.com/i30171

prolly not that big of a deal, but i just feel like my T4 helm is holding me back, anyhow what you guys think waste cash for eng helm and lose skinning or be patient and just hope for new T5 helm? (I guess my other option is just resocket my S3 helm for PvE lol but i like to keep pvp gear for PvP)

I wouldn't do it, sure the engineering helm is nice, but is it worth 1500gold? Or should I say, worth that much more that your T4? I leveled my shammy as an engineer from the beginning, he was an alt and I knew he'd have limited access to drops... The only thing I care about is the helm, I felt obligated to make a chopper since I had the ability, other than that the profession is worthless in my opinion. Now I'm playing him more, if I had it to do over again I would have just waited for the drops, if I had t4, no way I'd do it, but if you've got the g to spend and want to do it, have at it, the chopper is pretty cool

havent done 3s in a while and last time me and my partner did 2s we where about to break 1600 and then got really unlucky, fought alot of ppl with our rank or lower, but much better gear /sigh

we won like 2 games that week it was terrible.