Ticket Grind
If you are willing to pay that much for tickets, you can always buy mats on the TP and then boxes at Cliffs for tokens (and a “small” chance on a rare… :P).
What/Which boxes?
http://wiki.guildwars2.com/wiki/Zephyr_Sanctum_Supply_Box
There are some vendors at the bery beginning of Laberynthine Cliffs that trade them for materials.