I would say go as cheap as possible on your inquisitor. Based on your list, it seems your only spot is to take a HQ inquisitor, which is bad cause it means more points and you have to take a retinue of at least 3 as far as I remember. In this case, take the lord and 3 heavy bolter servators. Leave it at that, if you want maybe give the Lord a power weapon. Stick this unit in cover and just shoot away. Use the rest of the points for other stuff stated in your other thread.