For this away-game-at-home, Ticketmaster are currently only selling from the 10,000 reserved seats allocated by the Dockers for travelling fans/walk up on the day. These are all in the eastern side of the ground, mostly next to, or under the scoreboard, and some of these will be in full sun during an afternoon game in April.
But if you phone Dockers membership services, they'll happily sell you your normal reserved seats, for half the normal price.
Which seems OK to me.