After running the calculations, it appears that I have around 6 weeks left in my quest to hoard all the wonderful tier shoulder and belt designs from Throne of Thunder. This is one of those grinds that has yielded many-a-moggable, however the lack of other options for this particular rep is daunting considering that I have 3 characters who would love to have access to those models at some point. I'm focused on getting Aellin hers, and perhaps I'll settle with the the Raid Finder variety for Arithan and Amerisia. :p
In case you didn't know, all of the regular raid tier shoulder models are available from the Shado-Pan Assault vendor at exalted, and do not appear to be class-specific. For my characters, this means 3 distinct options for mogging, which is quite hard to pass up! :p
Here are links to the sets they resemble for plate: Paladin, Warrior, Death Knight
And here are the shoulders that the Shado-Pan Assault offer at exalted. Best of luck to you all!