The Laskar Jihadists are operating with Jakarta's approval, or they would be stopped.
Christians would only get significant arms if the CIA backed such a smuggling operation. Free lancers would not stand a chance.
There are several other state intel agencies that could effectively pull this off most especially the Australians or the Phillipinos. The British and French could also do it. The problem is there is no will to get it done.
Stay well - Stay safe - Stay armed - Yorktown