Uh, yeah, sounds like it is
way too minimal to me.
First, it does seem a tiny bit of a cheat to use a jacket with 18 pockets (and an unlisted capacity) instead of a pack.
Second, is it really that hard to carry a second pair of underwear? Seriously?
Third, it does seem like a tiny bit of a cheat to he can basically procure gear at will.
Otherwise, I'm not sure why you need much advice on how to go minimal.....
Edit: I do hope the guy has fun.

I just don't think it will be a practical guide for touring.