During SBY-period, the agreement was that Indonesia would pay 20% of the budget for participation in the design and a certain amount of ToT. In the last years the IPTN-engineers do not participate anymore because of the unwillingness of the Jokowi-administration to pay. With other words, Indonesia missed many chances to gather enough expertise, knowledge and experience in developing (stealth) jetfighters. And even if the whole 20% was paid, i can't believe that Indonesia will be ready to develop an own stealthfighter, even an aircraft in the class of Hawk Mk.200 or TA-50 will be a miracle. I mean do we have companies in the same calibre as Hanwha Systems, LG and Samsung?i can understand that PT DI and other supporting BUMN can't achieve it right away, they will need more time and more research to reach that level.
But is it worthed to make those learning process faster by asking more ToT or more right of this KFX by contribute more??
previously it's 20%, then went down to 18% for the same mount of ToT...
let's just say 22-25% for more ToT n right....
even though i believe the next question would be, do we have that much money..??
or how much difference that 5% would make..??
Besides that, do you think that the Indonesian government, and specially the Jokowi-administration is willing to spend billions of $ in developing an own variant of the KF-X or a new fighter?
I believe that the whole negotiating process by the Jokowi-administration is a theatrical act to let the Indonesian participation stuck and to force an Indonesian withdrawal. And it is up to them who to blame, the SBY-administration, the Koreans, Covid-19.....
So, answering on your question
"do we have that much money?"...
But it is all about the political willingness on how much there will be spend on defence and the aerospace industry.