Ryzom

Hello
I'd like to ask some questions.
first
I saw how some people have the same doubts about the engine and nel Ryzom

I was wondering the following
if I use the API to develop a game Ryzom any
I have to release everything that makes it
even the client and the server
me on my quests even my world.

still intend to implement the physics engine of Ryzom and intend to release it but I think one of the things that I do actually.
but in order not to complicate the integrity of my initial project.
as an implementation of the client security code

and the models and textures that I create will have to release it also

and this is my game I can generate income.
in order to sell items or even charging tuition. and the project
becomes impossible to manage income.

and the license of Ryzom,
but if I create a new modification in some script that corrects the
connection errors or security (I agree to release it)
but this way does not become vulnerable because my game would be released
my way of security.

the same way if I change everything to create my world and my client
I actually own that would release all even if a version equal
without changing the version available on the site.
or even can use it with templates created by me.

please inform me so that we can start developing it.