Like I said, the start would be the hardest part. Cars or any other motor vehicles would be out of the question.
f this scenario would happen during the winter, it would effectively block all the lesser known forest roads for vehicle use. Doing the trip with skis would easily halve my travel time, even with the supply sled and heavy backpacks. 30-50km per day would be easy, when one wouldn’t have to go around all the lakes and rivers. We don’t get much daylight here in the far north so travelling in the cover of darkness would be ideal. I can find my way in dark forests with ease.
In the summer, the trip would be much more problematic. My country has countless number of old, unmarked roads and forest paths that are usually suitable for mountain bikes. This would be my first option. The second would be crossing the forests by foot which would be very safe, but it would take time.
My relatives would take care of the farm until I would arrive, of that I am certain - and they are very capable of doing so. My family has stuck around those parts for hundreds of years and we aim to keep it that way in any scenario ;)