ANCHORAGE, Alaska — Riches and paid appearances haven’t followed Jessie Holmes since he won the world’s most famous sled dog race, the Iditarod, last year. He doesn’t mind. A carpenter and a former cast member of National Geographic’s reality show “Life Below Zero,” Holmes has instead been content to return to his austere, hand-built homestead in the wilderness near the continent’s tallest mountain . His life is solitary and frugal. His closest neighbors are 30 miles away. “There’s a lot of