The plan that worked for me was:
Industrial in Brazil USA 1
- 2 Infantry, Artillery, AA Gun to Brazil
Set up a shuck to Brazil from E. USA (1 transport in SZ 10 and 1 in SZ 18 is fine, you only need 1 more dude to fill 2 transports worth from SZ 22 into Africa anyway.)
Build fleet in SZ 10 and move them down to SZ 22
Buy USA 4 you should have 38 IPC which could be 3 Submarines, Destroyer (the Destroyer prevents Japan from attacking the new submarines for free) meanwhile the rest of your fleet (42+40+38-15-ground units worth) should be swinging down into SZ 42 ready to liberate Australia if needed or to unite iwth the SZ 55 fleet.
Note, it takes 3 turns to get the Transport/Battleship from SZ 55 to SZ 22 anyway, so this really is no faster/slower than America would move.
Honestly, though, I’m liking the extra transport and just shuttling down to Brazil and over instead of the complex and moving over. 8 IPC for the transport is < than 15 IPC for the complex. And the extra transport can still be used after Africa is secure and Germany is toothless in the Atlantic.