As Vlad says, see money the unit of caring. tl;dr: Don’t worry about what you can directly contribute. The best thing you can do is make as much money as possible doing whatever it is you are best at and donate that to the cause (SIAI, I suppose). Given money, a cause will have no shortage of talent available.
You may want to do a bit of time as a visiting fellow or whatever to confirm that your target organisation is in fact what you think it is. There is a lot at stake if you get it wrong...
Setting up a local rationality scene seems like a good idea independent of your particular goals.
As Vlad says, see money the unit of caring. tl;dr: Don’t worry about what you can directly contribute. The best thing you can do is make as much money as possible doing whatever it is you are best at and donate that to the cause (SIAI, I suppose). Given money, a cause will have no shortage of talent available.
You may want to do a bit of time as a visiting fellow or whatever to confirm that your target organisation is in fact what you think it is. There is a lot at stake if you get it wrong...
Setting up a local rationality scene seems like a good idea independent of your particular goals.