Apparently there's a Kislev WarhammerFRP supplement called "Realm of the Ice Queen".
I guess a large town / city in Kislev would look more like the kind of Germanic Empire half timber anyway in terms of architecture?
I think the Total Battle ones would be fine as stand ins for Kislev outpost houses.
And yes, Draccan, I had my eye on those as well but thought they might be a little large based on Kallistra's usual scale.