if I was in a similar situation I might ask someone in the back who is a pilot to sit up with me...
god forbid something happens to me? at least the passengers might have a chance of living (the PPL or whomever could prolly be told over the radio to enter a setup for a CAT IIIc landing, and just let the plane do it's thing)
if I had to go on a flight tomorrow as a passenger and with my level of experience, I could probably setup the plane to fly the approach for me with the auto pilot and give my best shot at landing it, or like I said, let it auto land where capable (aircraft allowing of course)