Here's my points why to choose things and why not
Regarding the time dilators.
I would choose no, because of the earlier insult. This is for petty reasons.
Purge the Malcetus subsector
I would choose yes, but I wouldn't show our full hand. Because that's the kind of thing I would expect from the imperium.
The 1500 materials per world, or 9000 materials in total are a pretty big bait. We shold use a part of our forces to purge that subsector but we have to be careful with not showing our entire hand.
Aiding the mechanicus is important, because that would prove that we do not taint their technology!
As in we would be some of the first xenos who do not do so.
[X]Political deliberations
-[X] Refuse, you will not be giving such tools to the Inquisition
-[X] Purge the Malcetus subsector
--[X] 10 Escorts, 5 Light Cruisers, 2 Scythes
-[X] Create a 'clean' fabrication array
-[X] Do not Mindshackle the representative