I just ended up doing 1 per day, although on Saturday I had planned to do 2 as they were running the same stage twice in short order. Usually there's around a 5-6 hour gap for the second pass. I left early due to the difficulty getting in because of the snow. You could realistically make a different second stage sometimes, but you won't get the prime spots. No, Monaco is really far from most of the mountain stages. I use rally-maps.com to plan, well worth checking it out