I am not sure but I know Sam Rutherford was involved in the planning of the route as he did with TCT's Africa jaunt.
He may be reluctant to post.
This from her website.
What is rocket route?
Some bits I recognise such as Chittagong Bangladesh to Chiang Mai,Thailand then Bangkok to Malaysia and Singapore. The flying from India to Australia is fairly simple. If she wants scenary the alternative is through Myanmar to Phuket Thailand. Amy went via Rangoon which is now called Yangon. I was there a few months ago.Given a choice I would prefer routing via Myanmar(Burma).
Paraplegic Dave Sykes did it in a microlight so it is a manageable trip.
How did Amy Johnson manage the logistics 85 years ago?