Ay I was wondering if it possible to make it so you can have full control the player creation, like for example the body shape so you can change the shape regardless of race?

No, there are nothing more to unlock at that stage of the game. You could get a laboratory for the mansion to change most aspects of characters. 

You could edit the save file, though you will want to make a backup and you need to be careful as it is easy to make mistakes. Also the script files are easy to open and change with a decent text editor.