Thanks for the information and concern. I've talked with a good friend who is also a Canadian Ranger and who has done the bike trip. The ice road conditions should be fine at that time as it usually closes near the end of April. I believe we should be fine for April 17th when we are looking to do the trek. It will be the same time as Tuk's community jamboree so there will be a bit of traffic so lots of assistance if we need. We'll also have two vehicle supports with food and warm clothes as well a place to stay warm! If it doesn't go as planned, we may do it over a span of two days.