Ok you got the point but again if we go for better sub systems we will minus the present sub systems as well so may not that expensive like I believe my earlier expectations for a French sub systems version of JFT may cost around 25 Mil $ max or much less but if we work with partial composites like re-enforced carbon fiber considered while building air frame still it won't cross 27 Mil $ a pop still much cheaper then LCA. I think LCA also carries its time over running costs as well that's why it may be a little expensive.
With a big "if" we include French Snecma M53 PK engine it has a price tag of 3.2 mil a pop but have better 100.7 kn thrust so the difference is 0.7 million and it may reduce the maintainable cost and lifecycle cost so it may be a better choice.
That's my understanding and their are a lot of factors behind it others may differ.