>but I don't see why a court would limit itself to those assets
If the court rules "the deal has to go forward" I don't see why other assets would be considered.
Also,
Net worth != seizable property.
Also,
Net worth >> real net worth > realizable assets > seizable assets.
To be honest, if Musk were ordered to pay the $44B today, out of his pocket, I don't think he would be able to.
All I'm saying is, even if Twitter wins (which I think they will, in the very long end), there's a long road between that decision and having the actual money (or stock or w/e) land in their hands.
On top of that, there's no way Musk could go to jail because of this (it'd be very hard to prove there was wrongdoing behind this), so there really is no pressure on him to pay the $44B, he could drag this on foreeeeveeeeeerrrr ...