Hello from Norway. I have seen how you are struggeling to find a cheap way to get to Aalesund from Scotland. By plane is the fastest , but also the most expensive way. Saw someone suggest a route ,which ended up in Bergen. But it stopped there, as there are no trains going here. BUT...there is a speedboat which depart from Bergen and travels to Maaloey, and go by a waiting bus all the way to Aalesund.
So the route will then be: Plane to Amsterdam, bus to Ijmegen, boat to Bergen, speedboat to Maaloey, bus to Aalesund.
The speedboat depart twice a day ( at 8:00am and 4:30pm CET), the trip take 4hrs35mins and the bus takes another 3hrs35mins.
You have to preorder a ticket for the speedboat/bus. You can do that by calling +47 55 90 70 70
Hope this was helpful in any way or the other :-)