You also get an absolute ton of soldiery from first time bonuses for completing dungeons. Make sure you pick up the Hildibrand quest chain as well, it's essential for unlocking trials roulette and it's a really entertaining quest chain anyway.

Basically, do all the dungeons once to unlock high level and expert roulette, buy a load of soldiery gear, and faceroll your way through Labyrinth and Syrcus Tower before doing WOD over and over again. Make sure to cap out on poetics and do the weekly quest for clearing all three Crystal Tower instances and you'll be geared up in no time.