What a legend.
I have to admit that I were advising Tarzan I'd be telling him to pause his attempt, learn from what's gone right and wrong and start again in a few months' time once he's had the proper time to prepare a decent challenge. He's clearly fit enough, and has probably got the bloody-mindedness to succeed, but it does feel as if he's being badly let down by poor preparation and worse kit and environment. Leaving Steve to have his attempt without looking over the shoulder all the while would be a very sporting gesture and would mean that he could take the record over the pond a couple of months later.
(What's the military slogan? PPPPPP?)
Over on the other forum someone is reporting that Steve is using Sora kit (but really simple bar-end shifters), has a very large stash of replacement cassettes and chains and other consumables and has had many many fewer punctures from his Schwalbe tubeless tyres than he might have feared. That's the sign of someone who's really well prepared.