To my mind, the Sanguinary Priests were like Warrior-monks, in a similar vein to the Chaplains of other Chapters. Simultaneously responsible for the spiritual wellbeing and the traditions of the Blood Angels. To this end, I tried to combine elements of the Empire Warrior Priests and Space Marines. Which meant I needed robes. And hammers. And the Sanguinary Guard.
Using some of the spares from the Sanguinary guard box, I built up the frameworks for the priests.
I decided on one "actiony" pose, one more sedate and regal. I also trimmed down the death masks from the same box, so as to give them the "faceless" look that the chaplains also have.