In the Bruce trail near Mississauga, Ontario
We are still planning for a start in mid to late March. We know most people finish in somewhere around 35 days. Trying to be realistic I think we will need at least 45 days.
We keep buying equipment little by little. We just got our sleeping bags. They are rated for 15C (and for a extreme of 3C). The average temperature in Navarra in March is around 9 C with a minimum of 3C. We do not expect to have to sleep outside so we should be fine. The sleeping bags weight 1 kg so they will be a significant part of our load but they pack reasonably small.
I will write occasionally until we start el Camino