- In the long run, all three approaches and all other approaches imaginable will be taken. This is about how the Waystone Project will be perceived, not about what it will accomplish. It will affect not just how the locals feel about it and how they help or hinder it, but will also be a factor in what other rulers might expect if the Waystone Project came to their lands.
So... If in the long run, we're going to do all three, and it will accomplish all three objectives, then...
Then I think we should focus on number 1; focus on the people first.
Because "It will help the people, it will prevent gribblies and mutations"
is a great way to sell the idea of Waystones to rulers and populace both.
If you want to explain a more academic or theoretical idea like "This'll fight back Chaos", you can explain it to the rulers and court wizards when you talk to the rulers already. But this, this will provide a demonstration and build populist support (ideally, anyway). You can't argue your way into populist support so easily.
Yes, we want the Waystones in order to defeat Chaos, strategically. (Though we also just want to, flatly, help people too. It's not all clear skies research or ideas. We want to feel good about directly helping people too.) But how do we want to
sell that idea to people? What is most attractive to people, what gets them most riled up? "Do this weird magic thing and it'll beat Chaos in the long run" isn't something that the common man, or even common ruler, is going to get fired up about.
But if he can get fired up about his people being happier, healthier, safer -- and not weirded out by magic stones that might require a purging or cause clapback or something -- then he'll be more inclined to get our Waystones.
Least tainted in Praag is still fairly tainted by any sane estimation, and taming the oddities that disquiet the densest (albeit least-threatened) portion of the local population will be a crowd-pleaser and will ideally generate a quiet acceptance for future, more ambitious deployments.
Ideally generate more acceptance, or at least not generate antipathy. This is good. We don't necessarily need to blare this out as "This fights Chaos!", we just need to get this done and sold and deployed everywhere.
This will undoubtedly do the most good for Praag in the long run and will be looked well upon by the kind of person who has a Wizard in their employ to explain that to them, but in immediate term most citizens of Praag will only know of riled-up denizens of Chaos and the inevitable death toll that taking and holding parts of Newtown to establish Waystones within them will reap.
The rulers still have to care about how their people feel about things. If their people feel negatively, they might be more cautious about trying this. If they feel positively, that's good.
Reclaiming those will not just make Chaos' position slightly less advantageous should there be another Great War, but will also benefit the economy of Kislev as those industries can be restored and cattle, lumber, ore, and trade can flow south once more. But all that might fall on deaf ears for people whose lives and livelihoods are contained within the walls of Praag.
Good for the nation, but is it good for Praag? The places that will hold the Waystones will, first and foremost, be defended by the people who live there. (Or sabotaged.) So better get them on-board and happy with things, rather than uncaring or annoyed.
So, my thoughts are, since
any amount of Waystones is
already going to be accomplishing the objective of "fighting back the Chaos Wastes and Chaos"... well, what's the best way to sell it to people, the local rulers, and the kings?
Some of us might be more enthused by some long term ideal or idea, but we don't necessarily have to market our idea or cause
by that thing; we can just say "This'll help your people" and then give them tangible benefits for helping their people. And then wind up accomplishing our long-term anti-Chaos goals just through helping people.