Academic Priest makes it all Int based does it not?
And the stats are 18, 18, 16, 16, 14, 14.
not sure havent read or head of the feat to be honest.
but i wouldnt worry about it you have the two 18s one in int one wisdom and you should be good to go. your probably not casting a huge amount of spells with dcs from the archivist side anyway.
you may want to go with something like this for a build
wizard 5/nightmare spinner 5 ( think you can get in at 5th ) / binder 1/ anamagus 9 ( needs improved binding feat )
archivist 5/ divine oracle 2/ sacrod exorcist 1/ archivist 2/ contenplative 10
gives full casting in both and some vestiges to help with the debuff. i was reading a lot of domains and they have some great debuffs in the them ( a lot to choose from ) plus access to all divine spells.
the wizard side may need tweaked around a touch to fit in correctly level wise but its close.