Best of luck with your plans. Don't listen to the naysayers - the voyage can be done, has been, and will be again.
I find it interesting that you consider there is nothing to see in a conventional route
. IMO, quite the opposite. You will learn a lot about people, cultures and history
, much of which is mostly unknown to the average westerner. And the dangers are overstated - Malacca is really interesting, as is Indonesia
, Sri Lanka etc etc.
Anyway, the challenge and risks of a high lat circumnavigation
are more related to nature, where the tropical route
more related to people. All IMO, of course! Very few multihulls go the way you're planning.