Sounds great Spence, and I’ll look forward to seeing the final cut when you’re ready!
I’ve only seen Furiosa once at the cinema, and my memory is that it did run a touch too long (particularly at the very end, the ‘multiple deaths of Dementus’ as you call it).
It felt like binge-watching four or five episodes of a show back-to-back, and if your edit can make it feel more like a single propulsive movie (as you say Fury Road and Mad Max 2 were so lean and mean, really no fat on them) then it would become more in keeping with the hi-octane visual storytelling of those two classics.