A good winter skills course is given by Kochanski at Karamat in Alberta, CA. You CAN be comfortable at 25 degrees below zero. I slept outside there for a week and others have done the same. But the alpine region adds a lot of dangers you won't learn anything about in those courses.
The cold - yes, it can and will be brutal. Unless you have the means to keep it dry and warm and stay that way - it would be impossible. But besides the cons, there are pros too:
- The time to prepare well - kit, cloathing, gear;
- The willingness to install a stove, like you mentioned;
- Firewood nearby (and I reckon the means to get it)
- Signalling and -I hope- people nearby that listen.
In Austria, I would likely not get a permit from the council to undertake such a feat for a longer time. Although they like to have a laugh, so maybe just for fun..
It is so easy to condemn remarkable initiatives. I for one am very much looking forward to reading your blog and wish you all the best with the undertaking. If you fail or succeed - we all can learn a bit from it.
-Emile