That would explain why it still appears to be in fair shape. My guess is it had a decent amount of upkeep at various times throughout the years. Leaning less now towards a repro build, but yet a very old, but somewhat maintined through the years shack. Appears the steps even have "stringers" which would be a more modern touch.Yes they ran electric in it and someone put a metal roof on it a long time ago.
Last summer an older couple stopped in to look at it. They live in Ohio and told me they used to live in it in the early 70's.