In fact, I'm more concerned about how Trumper and Morris would go fending off Marshall/Ambrose/Garner/Holding at the WACA. As a guess I don't think that they'd last very long, although Trumper would fair better than Morris I think. This is because a pair of fast bowlers operating at both ends would be a completely foreign experience, and a far cry from SF Barnes or Alec Bedser.
I know that I bang on a bit about Simpson and Lawry, but they have the second best opening average after Hobbs and Sutcliffe, and they scored plenty of runs against Hall and Griffith, Trueman and Statham. Simpson also scored a lot of runs against spinners and has absolutely no worries against Bedi or any of the Indian twirly-men as his 176 against India at aged 40 indicates.
I want full value and mega-tons from Bradman and G.Chappell, so I don't want them needlessly put under pressure from a shiny hard ball;