Yes "no one has" ,lol, but if you do make sure to bring a 6m ,lol. :-)
As to wind, the indo trades are best usually in June and July, with the months outside that a bit hit and miss though they can be really good too. The wind varies with one side being good while the other isn't. You get local effects and obviously places with more wind than others. But it is surprising just how much of Indo blows in the good months, it feels like it is everywhere. Smaller islands seem to be a good choice for wind.
There is windguru and windfinder etc which can be good. I also like this site
earth.nullschool.net/#current/wind/surface/level/orthographic=-249.23,-9.80,429 If you give it a regular look during the windy months ( may to oct) you will start to see what is going on. Oh and another great indicator for strong wind at a place in indo is if the ferrys get cancelled regularly at any time. This is because of rough seas caused by wind :-) hence relying on ferries in places like Rote during the windy months can cause you to miss connecting flights.