With less than a month before departure, I was smart enough to do a bit of research and discovered that I probably won't get my religious experience atop Mt. Fuji. I'm pretty healthy and fit, but I am not going to be able to do this. I'll just take the train to Kawaguchiko 5th Station and call it good.
The website below is just one of many "reality checks."
http://www.japan-guide.com/e/e6901.html