I still might end up rerolling it. I’m not too sure yet. It’ll all come down to how well I can handle being semi-support, and how well people will actually accept that. I’m planning on testing it once I hit Priest C3. I’ll probably loaf around the level 50 dungeon for a bit to see if I can handle it.
For one, I probably went one of the derpiest routes I could take, and chose Mass Heal, Revive, and Monstrance over Sacrament, Blessing, and Aspersion. Basically, my logic was more, “If you live longer, you can do more DPS,” over the typical logic that, “If you do more damage, and the enemy dies faster than you do, then you don’t have to worry about healing as much.” 
Wasn’t really looking to be full-support, though, just semi-support, moreso to support myself if need be. Buuuut, a Cleric C3 Priest C1 Monk C3 wouldn’t have those at max, either… A Cleric C3, Priest C3 is probably the better choice if they’re looking for a support role, anyway. 
Although, now I’m wondering if just neglecting both C3 paths, and just going Cleric C2, Priest C2, Monk C3 might have been viable… Hm… 