WNCGoater,
Great story--thanks for taking the time to write it and for including the photographs. My first century was also a solo one, though it was planned ahead of time.
There is no need to compare your accomplishments with others on this forum. I always think about this quote from the masterpiece, Zen and the Art of Motorcycle Maintenance, "The real cycle you're working on is a cycle called yourself." You were able to draw upon you inner strength and finish this challenge. Way to go!