I see you have finally left the dark elements and are going towards the Light.
I cannot recommend cleric 3 unless you really want to heal bomb. Use blessing to make heal tiles hit twice. Paladin resto will give extra Int scaling to heal tiles too if you are into that.
Cleric3 cure 15(16, 17,18) takes too long to finish all hits vs mobile targets/bosses. Moreover it is quite difficult to make all 15(16, 17,18) heal tiles hit. Guardian Saint is not a beloved skill. Probably you will get heal max, cure max, divine might 4-7, fade 1, and some safety zone.
I hope they will fix miko clap and make it affect ground tiles. I would love to heal-dye a whole map into pink.
@ Chaplain could be ok if the capella would not require players to leave and re-enter the aoe zone to refresh. Once miko can extend magnus, it might be a bit stronger. Two holy zone aoe circle skills (arrow and magnus) could be very strong holy element damage vs low mobile enemies. Chaplain is very bad for buffslot bar though.
If you go priest3 for stone skin, you will have to split stats to get some spr (or through equips).
Miko clap extends objects too, so you could get diev if you like statues. Veritas diev build (replace druid with) miko could possible become a strong utility and extended aoe zone damage cleric build.
I would only go kabba 1, 2 if kabba 3 is very very strong or if you like pvl. Currently kabbalist looks like oracle 1, 2, lackluster 3 at PvE, when compared to doctor.