I think this is a great idea. Settlements will need people of your like to help get crafting up to par. This seems like a service we at Heathguard would be needing to get a leg up on the crafting scene.
Well Harad, when the Neddles finally get to the River Kingdoms, we invite you to look up the Hearthguard. We should have most of the supplies(weapons, armor, guards, etc) you need to be successful here.
Hearthguard doesn't really have any of the fancy titles, Ambassadors and such. We are just a group of hard working folk. I would though like to welcome you to the River Kingdom.
Welcome to the river kingdom fellow dwarves. I have set my alliances with another company, Hearthguard, but it is alway a welcome sight to see more dwarves. Perhaps we can share in hidden forging knowledge.