I missed this - which one are you doing? That's really exciting! It's good to have a goal, and I bet you'll find that your mental toughness and sports experience will take you far, even if you miss some trainings. Good luck!
Marc and I are going back to South Africa this Fall and I will run The Otter African Trail Run. It's a very technical course, so it will be a very long marathon time. The best women take 5 hours, so I am shooting for 6.
That is probably a great course for you - probably technical terrain helps you rather than sets you back. I saw the little video about Marc's race last year, inspiring!
Yeah, that was a great video and a great race by Marc!