Swedish Emigration through Trondheim

My Grandfather born Nils Jonsson, Nov. 27, 1877 in Jamtland, Sweden emigrated to Canada. A few years ago I was registered on this forum and someone told me that he had left through Trondheim in November 1903 registered as Nils Johnsson and was an unmarried sawmill worker from Sweden at that time. I am doing my Swedish family tree and since I can't seem to access the searchable database that Norway has for emigrants, I would like to be able to get a copy of his exit permit, or at least a copy of the page that shows on which date he left Trondheim and on which ship he left (I think it was the Tasso II). I would also like to verify how Swedish emigrants at this time travelled to Trondheim, how far away it was for him to get there from Sweden, and how long his journey would have taken him to get to Halifax, Canada. Any help would be greatly appreciated. Thank you.