This Twitter from Alman today got some discussion on Indonesian enthusiasts forum. I'm not going to talk on availability of Fund or Credit line for P-8A. However more on how this guy who supposedly known much of MinDef program, do wrong assessment to begin with.
If there's interest on P-8A operation, it will not be from Indonesian Navy (TNI-AL), However it will come from Indonesian Air Force (TNI-AU) project. TNI-AL MPA is going to be based on CN-235, because that Penerbal support resources capable off. P-8A interest come from TNI-AU as it's based on program to replace 737 Surveillance.
TNI-AL air wing (Penerbal) also do not have infrastructure to support large Jet Airliners like 737 class. They don't have Pilot resources for that class of Airliners. Whether there will be budget for P-8A is another story. However the one that ask for that type is TNI-AU and not TNI-AL. Considering the situation, any 737 class special purpose type will be operate by TNI-AU and not TNI-AL.
I don't have access to MinDef procurement data as he always put in his Twitter, to shown he has internal information. However my sources (means my colleagues) in Ministry of Finance and Bapenas says that any procurement submission from users of Aircraft type will also be considered by them the availability of the users own support resources too. Thus any institution that ask for some type of Aircraft class, must shown they have the ability to support them too.
It's simple really. If TNI-AL ask for P-8A, then it's mean they have to ask for Investment to support 737 class Airliners. However if it's for TNI-AU, as replacement or additional forces for existing 737 Surveillance, then the Investment for support will not be relatively as substantial compare if it's given to TNI-AL air wing (Penerbal).
Also it was TNI-AU that sometimes ago saying in media that they're asking MinDef on replacement program for 737 Surveillance. Thus off course TNI-AL will not going to have P-8A cause logically and logistics point of view, it's TNI-AU that will operate any special purpose 737 type class Airliners. That's why when Boeing team come to make presentation, they're talking to TNI-AU and not TNI-AL.