For China you will need much more than going there just for your own fun; you are flying single engine planes/microlights and that is more or less a no go for the time being. The only way for you is to get a major exception, and expect that you will have to fly with "safety pilots"
Prepare also a fair amount of cash to buy your way out of some countries (China is actually quite clean for that matter and so are Myanmar and Thailand) ; as far India is concerned arm your self with an extra load of patience
It seems to me that the least expensive and most effective way to achieve your journey is if you turn it into a valuable event with proper press coverage and official support in some form of another.