Interesting. I never thought about using the very same unique girl, but with random name and traits.
Also, in theory it's possible to build two versions for some random packs, for young (loli) and adult characters. It will take more time than usual, of course.
1) Yea the game will handle the whole part
2) Not really, i can build it into the editor so that when it created a Adult character it will build a Loli Version of the game character
Although with that, i will have to build a handeler to handle loli, or i have to allow loli in the game, although currently it is built to allow loli but only with the use of a command line,
I will do some research and find out the exact laws on loli where i live