It's a single septa, not a host of them. We have enough Green Men to activate gifts all across the North, we can spare one to babysit one septa. And again, we only need one maester/acolyte. If her gift turns out to have some kind of scientific basis, I'd like a maester to witness and potentially be able to replicate it. And even if not, then the previously mentioned goal of ensuring that all five of the aforementioned factions are seen and no longer have the onus of the unknown still applies. And most importantly, it minimises how many FM members are let loose down to one, unlike the other vote.
Now that's not a bad idea.
...maybe not all of the books, though. We do want to maintain our edge & advantage over the other realms, after all
True, probably not the more applicable ideas, but I'm thinking that the more theoretical items that are good for building a solid base of knowledge, but don't have immediate applications might be good to send the Citadels way. That way it starts spreading so that when we do reach a point that that knowledge is needed for something it's available instead of us having to train a bunch of people in it.
As for the maester/acolyte issue, I sort of feel that we have so few of them that even one being lost to this mission is a major investment. Perhaps it can simply be an action to send an acolyte with a silver link to follow their group around for a single season?
That way it's not a permanent loss for us in that a maester is not required to follow her around for the rest of her life.
It just feels more like an action to observe, and not a good thing to put on as a requirement for her travel.