After painting Raven Rock red I returned to Falkreath and recruited Rayya who seemed knowledgable in all things housing. In fact, she advised that there was more land being sold at Morthal and Dawnstar which I did buy for 5,000 gold each. Each property (including the one I previously bought in Falkreath) came with enough supplies to build a small house on site, which I did. It's pretty cool to see it come up piece by piece.
Makes me wonder if Stonehenge was just an incomplete house...
With three unfurnished little houses and a lot of room for expansions and furnishings I decided I'd have to settle on one spot and focus all my efforts there. Since the Morthal property was too close for comfort to ruins and the Falkreath one was a stones throw away from a necromantic altar (and the disturbing cave) I decided on the Dawnstar location, which is actually quite far South of Dawnstar, near the plains of Whiterun was the obvious choice.
Before I'm able to get to work though another message from Ralis arrives, asking for more help. Sigh. We go, find more draugr which Rayya clears out while I donate another 5,000 gold for the "final push" of the excavation. A random high elf mercenary also attacks us along the Solstheim shore but Rayya handles him easily. It's good to have talented side-kicks.