When's the best time to arrive for winter and is it difficult to find a new free BLM campsite every 2 weeks during winter in the vicinity or is it better to plan jumping around a large area of the valley? Or would it be a better idea to just purchase a permit to stay till April given this will be my first stop to begin life on the road full time? Right now looks like I'll be hauling a CT that I'll begin insulating, installing windows, etc, right away.