The Elder Scrolls Online caps armor at Level 50 and Champion Point Level 160, so as long as you're at CP 160 or above you should get the best possible pieces to the Hexos Ward armor set.

The Wretched Vitality armor set is one of the former, and its set effects can be imbued onto any piece of crafted armor. Elder Scrolls Online: How To Start The Deadlands DLC ...