I think I like this idea best of all. I didn't want to postpone Barbarossa, but this specific timeline works, being plausible and workable.
IMO it's a pile of junk, it starts going off the rails in 1941 (in the first stated event), and just goes further and further. For starters, a Germany that can't beat France on its own is never going to persuade Mussolini to move, (The Moose didn't even start OTL until the 10th of June) Probably the same with Spain, and even if they did, Italy's only partially mechanised, Spain barely at all, so they're going to be both mostly foot-slogger armies, which may be enough to tip the balance, but will still require German to do the heavy moving. After that, the Axis isn't putting anything big into Africa in 2 months, the Italian facilities were cr*p.
On the American front, If the atrocities in China continue to pile up President Wheeler is going to face a few hard questions. Also, the Japanese were in capable of really hurting Australia or NZ OTL, what makes you think they'll do any better here (or will have the motivation to)? Also, neutrality doesn't mean 'turn away from Britain'.
Stalin isn't going to order an attack in '41, the army's just not ready and he knows it. And even (or
especially) if that does play out, Germany's going to be screwed past 1943, because Russia knows about logistics and standardisation (and German's got no resources coming from north of Denmark), and with much less devastation, and it coming much later, they won't need LL.
And to describe Britain as horribly crippled is cr*p, they still retain as firm, untouched allies the most industrialised of their dominions, Canada, and you can bet there'll be a lot of volunteers from Australia, New Zealand and India.