A week or two of mat-farming later:
Getting it gemmed took a chunk out of my epic flying skill fund, but it was worth it. (Still farming the Primals for the epic spellthread.)
I also ran a heroic with some non-guild friends last week and got mildly scolded for my gear. Namely the fact that I was still running around with Wand of the Netherwing when an epic wand had been made available through Badges. Two heroics later I picked it up and also made my very first honor-point purchase ever (epic gem):
Another thing I was picked on for was that I'm using a healing trinket (Scarab of the Infinite Cycle) alongside my Icon of the Silver Crescent. Honestly though, all the other trinkets I have are +spell crit on equip - the Scarab is the only one that offer +spell dmg. They told me to farm some Heroic or other for an epic trinket but I forgot which one, which is just as well since my 'to do' list is getting kinda long.
Regardless! +1k shadow spell dmg has been broken. With the spellthread it'll be even more, and I still need to switch glove enchants from +15 spell hit to +20 spell dmg, now that I'm ahead of the game hit-wise. The new damage goal is to break +1100 shadow spell dmg before Newyears.
Btw, that's me sporting the Aldor tabard, after finally dinging exalted yesterday :)