SUT torpedo is also a good example, it wasn't further than assembly of critical parts but still some parts were produced in there, at least there was a production line. It was achieved in 90s.
Actually yes, if the first chance taken,then +2 Cakra would be produced in Indonesia but there was a second chance in 90s with refit of Type 206 and transferring those to Indonesia for MLU (rather extending operational life upgrade). I know +2 Cakra didn't pass beyond negotiation. And I presume the Type 206s were fallen because of the transition from Suharto and asian economic crisis.
So my bet would be those blueprints and tools belong to Type206s, since first two hulls were about to be shipped and cancelled in last minute. So some preps might have taken place in Indonesia to start refit. MLU is a much effective way to learn how to build something,and how to integrate it so it was much better and cheaper chance.
And i think corruption shouldn't be an excuse for that, it is just cheaper, simpler and easier to buy it through credits which paid in portions, and hand's not getting dirty in mud. I know what you refer to with some people tend to love some products, that was happening in Turkey too and even still creates a resistance in acquisition. (Also happened in Korea, some high ranks resisted to local products implying "lower performance")
And that's there is other big reason too, top to bottom policy of B.J. Habibie during his long term tenure as then powerfull Ministry of Research and Technology. In which he is emphasize the development of platform first compared to the development of sub system components and parts. Either FPB 57 or CN235 at the time of his term had a lower local content compared to today KCR 60 and CN235 in which got much higher local content of components and parts and system and it is understandable for the nature of dictatorial government which much to do for mercusuar projects of Soeharto.
I just wish Indonesia can learn from past lesson, and i would be very glad if Indonesia can achieved high degree of Independen in the development of system and sub system for future projects either it is in Submarine or Surface combatant warships. I don't give much thought of Indonesia must be able to design indigenous platform or not, but after the building phase is finished Indonesia should be able to overcame the needs to import or dependence from foreign supplier for another project or maintenance of the said system.