I have to be honest I did nothing like 10,000ft per week in my training; in my biggest month the last one the for example before the taper I was 27,000ft. I made the weekends the cornerstone of my training, usually a day in the lakes or running my local hills which are 2,500ft in height for the most part. In the midweek I did as much as I could, a lot on the road some of it with a weight vest.
I did one 9 hour, two 10 hour days and one 11 hour day, plus a few 6 hour days. I guess one size does not fit all. On my last big climb, Great Cable I pulled back 3 minutes, descending was a issue but only because of extreme shin splints, amazingly I had no problems with my quads, not even any DMOS after the BG.
I would say as a guide once you can do leg 3 and 4 back to back as an support runner carrying all the kit for a contender at sub 23 hour pace you are fit enough to have a good chance of completing with fair weather and good nav’.
ATB
Tahr