There is chance to get ex Japan F-15 J as previously Japan already hinted to resold their un upgraded F-15 J to US so can be offered to other countries
You can't have and maintain those Destroyer and AAW Frigate with such meagre Tiny Defense budget, increasing the budget. Hold the increasing of personal (especially the number of territorial development units like Babinsa of KOREM and Koramil) and put more resource into development of C4ISR...
Indonesian doesn't have facilities to promote export credit for arms transaction until later they revised, but since then there is not much push to promote our material seriously
Squadron 14th would be filled with Rafale, i don't know they would put Mirage 2000 there as interim gap or not. But there is also several empty Air Force base of class A, waiting to be filled with some stuff as their home base.
Kopasgat battalion sooner or later would be much more heavily Armed compared to regular Infantry battalion from the Army or Marine corps .... They already have anti tank, mortar, APC and so on.