Yes it is, Tag your main to the Sage, put minimal gear on the sage so it doesn't get 1 hit by a mob, don't even need to copy the gear, let yourself into Hystria/Aakman, swap back to your main. Zero silver to copy gear, main gets let in at any time, Profit. I would do the exact same thing if there was a Kratuga or Sycria key free character.
Seems the devs heard you and snuck in ability to enter Krat and Syc too :D