Bankers of the Indian Ocean. I like that idea.
Then write it up! You know more about the history and culture than any of us.
Maldives converted to Islam around 1153 AD. I am not sure if Maldives had strong trade routes to East Africa, but if there had been, it would certainly have been interesting to have a major Asian religion in Africa with Maldives being the conduit.
As far as neutral broker is concerned, in OTL wouldn't Sri Lanka have been in more or less the same position? Was SL involved in any sort of brokerage?
Fair point. Sri Lanka didn't do anything like that, as far as I know, but it also doesn't seem to have been a major maritime power (if
this is anything to go by, the trade to and from Sri Lanka was carried on foreign ships). A Maldivian kingdom with its own merchant fleet would be better placed to act as broker and diplomat.
On the other hand, the Maldives' Muslim trading partners would be more likely to trust it if it were Muslim too. The Maldives might actually be Islamized sooner in this situation, because they'd have more and earlier contact with the Islamic world and would hear of the new religion more quickly. It would be nice if they could introduce Buddhism to East Africa first, though.
Interestingly, this is a current event. The American govt is in discussion with the Maldivian govt about signing a SOFA (Status of Forces agreement). This might allow the US to set up a military base in the Maldives. I think this might have to do with the agreement with regarding Diego Garcia expiring in 2014.
The lease expires in 2016 but any extension would have to be agreed upon by December 2014. There are also continuing legal issues between the UK, Mauritius and the Chagos islanders that might complicate an extension of the lease.