A friend and I are climbing in Rjukan 2-4 Jan and have a spare room in our apartment should anyone be interested to share. Cost is 25£ a head per night. We will be driving to Rjukan from Oslo in the morning of the 2nd and returning to Oslo evening of the 4th and have a hire car for the trip.
I can't make the dates, I'm sorry to say.
However, I would be most interested in the conditions out there , if you get a few minutes afterwards to post a report of where you went and what you did ...