It's a MoU, a statement of will and interest of creating something.
Both are MoUs, which are again statements of interest, none of it are legally binding contracts. There's no payment for the aircraft, there's no official documentation.
Current Turkish order for Kaan as far as I'm aware is 0 excluding the prototypes SSB ordered.
Neither did KAI honour its agreements with Indonesia in tech sharing.
I followed the long saga of Indonesia failing to meet its agreements, promising to observe its agreements and to make good the development money outstanding then failing to do that again, then asking for a reduction in its share of development costs and (I believe) failing to build facilities in Indonesia as promised for development/assembly of K-FX. IIRC 30 development engineers ended up working in ROK.
I don't know. Funds allocated for KF-X went into corrupt pockets?
If you refer to prototype no 5, promised to Indonesia in the contract that was not transferred according to the contract but instead retained by KAI because Indonesia kept lying that it would pay what it owed towards development costs. At one point it wanted ROK to take aircraft built in Indonesia as part payment since it did not have any funds to pay. Then it ordered a load of Rafales. Were they free? I don't think so.
Beware of dealing with Indonesia.