First, thank you very much for responding. Second, I'm sorry for the delay in responding and for my English generated by the google translator. So..
As realistic as possible, I want to use the game as a simulator of the real project. But I'm still looking at how I'm going to do that.
I really don't know how to answer that, but as far as I can think I need the engine to have the same dimensions, mass, fuel consumption and thrust as the original.
I had used CKAN (mod manager) to build the modpack, I didn't like the result... Slow game play, giant loading screens, mods not working properly.
I followed this tutorial on YT, it installs the following mods:
Then I added the following mods:
Now the game is realistic, beautiful and running smooth.
I didn't change any .cfg, they are all in the version of the last realease (ref date: 24/jun/2020) from github and compatible with KSP 1.8.1.
Yes, it is a real aircraft design: