[X] Scout the rest of the Eight Peaks, to find out what other horrors are waiting out there.
We are perfect for this, I have enjoyed our various scouting (and assassinating, and sabotaging...) adventures greatly, and it needs to be done. Also dwarfs, dwarfs are great, and I would like to keep a close eye on the how the KEP into which we have invested so much develops.
[X] All this time away has made you miss your friends. Visit Anton and Wilhelmina.
We have friends and stuff there. I am not all that interested in messing around there now though. I would be in for redeading more undead, but Mathilda isn't well build for that I don't think, compared to what she could accomplish in KEP.
[X] You're going to have a rough time explaining your windfall to the Bursars. Better to get that over with.
The Grey Order probably has the best intel of any human or dwarf power, or close to it. It also knows our capabilities the best. If we want to make use of our skills effectively for the good of the Empire, this is probably the best choice. Should also provide a lot of interesting, varied opponents and opportunities.
Then get a rifle with a scope, where we really have the room to layer stuff, and go for all three + magical scope.
Why all this talk about a rifle by the way? Those are not subtle. A crossbow seems like a better idea to me for long range takedowns, should also allow for some Runes and magic imbued bolt shenanigans I suspect if we can get Ulgu attuned wood.
Also, doesn't Ulgu have any long range assassination spells?