Spr:con build will just make you lose out on a lot of dmg and heal potential while giving you a slight dmg boost to few skills along with one godly buff (stone skin). Just dont be surprised if you end up being pretty scaled off and not wanted in aprties at lvl200+. of course thats only for pve, pvp is a whole different matter that I know nothing of really.
Int + con is prob the best bet for pve, you can add some spr if you want to, or a lot if thats what you desire of course. You should follow your heart and overcome to future obstacles if some appear. Chaplain dmg gets outscaled really bad at lvl200+ so focusing on dmg might still end up being pretty bad in the current endgame.
Chaplains late game dmg needs some buffing anyway. Unless its just meant to be as it is, some dps for a full support class to be somewhat able to solo something at rank 5.