Ancient council hall of the Waters March, which once controlled a large swathe of southwestern Morrowind. Its main chamber would be the council hall itself. There could be subterranean halls leading to chambers for visiting council members, with an itinerant Indoril acting as advisor to the council as a possible resident.
Download latest addon for the council hall shell mesh.
Ald Iuval claim. Manor of Garisa Llethri (Leader of the Waters' March), currently in the care of Olmu Llendu, Lord of the Waters, Master of the Horns, who leads the local council in Llethri's abscence. Can have an extensive underground, though mind the exterior cliffs. Aside from chambers for Llethri (occupied by Llendu) and an eating area, it should have quarters for a few retainers. Use de_r furniture.
Questgiver is someone of high ranking and/or a noble in Almas Thirr. Either can be a pre-existing NPC (preferrably one that isn't tied directly to a pre-existing quest) or can be an NPC created for this quest.