Wait so Algari dungeoneer is impossible then since only 4 of the dungeons are avaliable at mythic difficulty. Gotta wait till season 2 to get the other half
This guide doesn't mention the red version of the bandana with goggles set that you need to max five primary proffs to get.
I checked out the vendor Osidion that sells about 60 civilian outfits (transmog sets) for Earth-Encrusted Gems. Maybe it's just me, but I said "wow that's so ugly" for every set...
Vermillion Patron's Elegance lookin siiiick on Tauren
a single transmog set seems a bit of an underwhelming reward for such an involved achievement.. hopefully it won't be required for the meta when that comes out