Krivis Chaplain might be interesting but I personally don’t think it would be all that great.
If you think about it, you’ll be able to get 1 hour Sacra and Blessing without hit-limit, so even if Pardoner’s Blessing is 30% weaker than a normal Blessing buff, getting Priest 3 in your build will be a lot of wasted class circles for little benefit in return.
Chaplains do get an extra line of dmg which can’t be bought via Pardoner, but remember that’s 4 class circles just to have such thing.
In my opinion Sadhu 3 would have similar or more auto-atk dps (from Transmit Pranah adding 75% your matk as psychokinesis damage to every line) and still have other active dmg skills (ABE, Possession) that Priest 3 Chaplain 1 is usually lacking. Melstis also combos quite nicely with Transmit Pranah’s duration.