A history of the construction of the new colony could be interesting and profitable one day, and he has his vampiric memory, so there's that.
He gets out of his funk soon enough. He translates 4 more chapters of the medical textbook for Mahan (So far, he has The Scientific Method As Applied To Medicine, Human Anatomy Overview, The Circulatory System, The Nervous System, The Skeletal System, and The Digestive System).
He orders about a hundred of those temperature-controlled metal disks - and a few larger ones - from the bemused and suddenly richer heat mage. He consults on various infrastructurely things for Valanda. He makes a few more attempts at semiconductors with Dareni's help, which get steadily better as he accumulates more tools and chemicals. He cranks out calculators all more or less identical to the one he sold Valanda and has them warded and sealed up. He shows Valanda the crude prototype of a snow-crawler-car-thing that can just about manage 5 miles an hour, but requires no force mage. He hunts again.