Excellent research, Brother.
About the idea of antediluvian people traveling around in the pouches of kangaroos, I think that it is feasible. After all, secular scientists have found that Kangarosaurus Rex probably had feathers:
This is more irrefutable proof that these creatures were Intelligently Designed by God to carry around humans, as these feathers would make the pouch like a soft and comfortable bed for long journeys.