I lean a bit more toward handing the Orbs with the book because it's more impressive, but on a purely pragmatic and egoless basis, it might be better for the Colleges to have eight spare Orbs of Sorcery to use in case they really need them.
Like, it's not in any sense mandatory, because Battle Altars can still be used with multiple normal power stones and not just Orbs, but it
could make the difference for someone.
I mean if they could cover ten provinces with tributaries wouldn't they already be doing it? I hasten to add that I am not suggesting compilation, just pointing out that this is easy, highly profitable work since a lot of imperial stakeholders of various kind have a vested interest in ensuring that said ten provinces are not filled with Dhar. I think the things that make the most sense to ask for would be low maintenance like knowledge.
I'm pretty sure that if we
actively want to see the provinces covered in tributaries, we would normally have to spend the actions ourselves due to us being the crux of the Project, the one through whom everything Project-related passes through.
Like, yes, the rituals will probably start getting spread around the Empire slowly the more places we cover, but the process here involves convincing the Elector of the provinces to pay wizards to do wizard infrastructure stuff for results that, by their very nature, won't be immediately obvious to them. The reasons why we started in Stirland is because we already know Roswita and the tributaries there would have more visible impact because it's next to Sylvania. And
even then she was like 'that seems like quite the time investment to bolster the smallest part of the network'.