Tmoe, These sets are going for 5-20m in w2 ATM.
As any item, there are few of them, so the merchanters are buying at outrageous amounts.
You say they will continue to rise, but I highly doubt it, as more and more people do the quest they will crash.
I give them a week or so.
For instance, animal masks, at realease they were 200-500k ea, there were only a few in the game so people were buying for 100m.
Now no one will even buy them.
This armour isnt spectacular, but you arent lying about the prices for now, but it wont last long.