go get 10 set of woods, 2 sets of tool & supply, and have at least 2 brothers with labor or 1 with mason background, to help a settlement to rebuild. getting few coins as reward and a great boost of relationship as well.
Hehe. What happens if the Greenskin Invasion destroyed your only settlement with a woodcutter? :P
I really like that idea though.
maybe i willleave the issue to the noble house and temple, after all they are the one who charges taxes xD
but also since you mention this, i think the settlement with harbor could import some of these from foreign country, may the globe economic alive, hoho