OK, after an emergency landing in backwoods Mexico because of a fuel leak, I am once again back home.
I looked into the Artificier rules for crafting scrolls and whatnot, and it appears that Sanne gets a +2 CL bonus, so her effective crafting ability would extend to 2nd Level spells and effects, so she would not be able to craft a spell of Dispel Magic.
Just so I am clear -- Sanne is headed to House Sivis, and Ipshivi and Voadam are to follow behind.
Then Thanor and Morika are headed to the market to track down the giant druid.
That leaves Moggrith and Aeranduil at the Chapterhouse.