infusing fissure armor cost??

Once I get to buy the fissure armor set do I have to also do the infusing in FOW,and how much it cost to infuse each one as well?Or do I go to that other city and do mission to infuse the fissure armor??I am ether gonna get the fissure gladiator armor or the fissure ascalon armor.

You infuse where you'd usually infuse...in the mission.