The point is i don't really trust Ukraine. I have a sense they can anytime embargo the engines once the UCAVs actively used in a conflict and drawn attention of western countries, or feel hesitant to deliver those because of something.
Blacksea Shield company shouldn't only work 1-way for enabling Ukraine to make TB2 but in return should also make Turkey able to make certain engines (Turboprop, Turbofan) without any dependency.
While i am 100% it won't be like that because Ukraine is not willing to, then If possible, development should be parallel to turbofan engine (TF6000) of TEI. At least the SSB R&D fund should be shared to TEI among the same project to make a turbofan to power various UCAVs from different companies.