I´m finishing the package. Probably today or tomorrow it will be ready. The cameras.dat is a file extensively used by a lot of mods ... so, my idea (and works!) is to the player use it own cameras.dat (in use), just opening it with S3D and deleting the object_view camera node. This "new" object_view camera will be then on a new cameras.val file. This way it can be "compatible" with any sh3 installation. Also will be easy to customize some parts of this "new" camera like: initial FOV, if you want or not the new zoom features and its values, if you want or not the pitch &roll, etc.
EDITED: forget about editing yours files! The mod is already released and i found a way to make it "plug and play"!