He doesn't really need to. Waterwalks add same to Dex as Soul Spurs, he won't need the STR if he gets a BP Enigma, and the life bonus on Walks is NICE.
Also the +5% max resis to fire is also nice on the waterwalks
You could also try and get a mageplate enigma, looks sexier on a pally
And for the helm, you could also use a good griffon and you won't really need the extra mana from the frost burns so those can be switched for crafted gloves with resis or bloodfists or if you're planning on teleporting a lot, magefists so that you can reach the 75% fcr Breakpoint if you're not going to use griffon.