*Delurks*

Just have to point out that Grey Knight Terminators are 46 points a piece, with the Brother-captain weighting in at 61 points. Meaning those termies will go for a whooping 245 rather then the 145 you have written out.

Oh and a quick calculation of points shows gives me 1036 points, rather then 996, and that's even before the extra 100 for the termies.

Also isnt it better to, since you aren't allowed to take 3 weapons, lose the bolt pistol, artificer armor and refractor field and get a terminator armor. This will get you the same bonuses for 10 points less and the ability to move and still fire the psycannon 36". Although it will stop you from using the commissar lord model sadly.
Oh and swapping the storm bolter-carapace armor for artificer armor on the acolytes will further help keeping your inquisitor alive, at a loss of some firepower of course.

Hope it helps.

*Relurks*