Alright, as far as the Jade Knight goes, you have two things to decide -
1) Which target you want to actually hit - There's the Guild, though I don't know how much you want to further antagonize them. There's the Realm - Houses Cathak, Mnemon, Ragara, Sesus, V'Neef, and Cynis should all have enough jade in one place. There's one of the other Threshold States - the most room for write-ins here. There's the Realm Treasury itself, though that is considerably better defended than a House treasury would be. It is also a much larger haul, though - even limited to what you can physically carry through hammerspace, you'd be looking at 50+ talents easily, or even hundreds of talents if you're willing to go full Odyssian Horse. The treasury itself contains over 50,000 talents of jade.
That would require an actual playthrough, unlike the others, but it could well be worth it. There's plenty you can do with that much jade, and weakening the finances of the Realm in conjunction with controlling the Emerald Mountain would be a textbook economic play.
2) The nature of the Panoply Charms that the Jade Knight will actually have - any specific powers or abilities you're interested in?
Finally, you guys should give some thought as to Ulyssian's win condition. If you're starting the Grand Heresy and trying to undermine / exploit the Realm, do you intend to trigger the Realm Civil War and profit off the chaos, or head it off and attempt to just seize the Realm through a concerted push (or surreptitious strike force) into the Realm Defense Grid? Or is your plan just to try and become individually powerful enough to forge a Primordial?