I recall first reading your comments on the No. 4 Lee-Enfield over on the Tom Bowers “Sword of Damocles” message board. Interest in the No. 4 as a SHTF rifle had bubbled up there for a while. Might’ve been during the run-up to Y2K.
My *Gunsmoke* columns ran pre-Y2K, which was the point. One covered the SMLE/#1 Mark III pretty well, comparing the SMLE my kid got for his birthday with another one, though I never got into the #4 in great detail. I had around 4 then, including a US-built Lend-lease Savage #4 MkI* and a like-new Canadian Long Branch, and shot them often, mostly running the then-availabe Greek surplus HXP and my handloads on the same brass. I've got an eye out for a #5 Jungle Carbine for Wyoming bear insurance, but if I don't run across one, a #4 or Garand will certainly handle that job.