I have done some research on a similar tour. Prudhoe Bay Ak. to one of the sea ports in Seward or Anchorage. Then by cruise boat to Vancouver Island. Back on land to one of the Mexican ports, Cabo San Lucas or Acapulco. Back to the water to Ecuador. On land the remainder of the way. Timing would be about 11 months. A July start and ending probably June of the following year, at a slow leisure pace. Just something to consider.