well, as fas as I know (not too much
), there's not any option in the RPM CLI for choosing the files to install.
you could (just a suggestion):
Make a basic package that has a script in
%post(whatever is here will be executed after installation)
that tells the user that there's another feature if you install whatever.rpm
Then create a second package, that requires the first one, only with the other two files.
There should be a better option but nothing else comes to my mind.