Just wondering if anyone has discussed adding Clerics to Whitehack.

Just wondering if anyone has discussed adding Clerics to Whitehack. I feel like the type of magic that clerics cast is inherently different than a wizard's (shouldn't cost HP, clerics should be rather tanky), so I've been trying to figure out if and how I want to allow clerics, and change the healing rules so that they can use magic to heal wise characters. Any advice would be great