I know this may be redundant as there are many tutorials on this, but I have pulled three files from websvn.kde.org and I need to compile them in KDevelop with CMake. I essentially need to know how to compile a part of KDE - specifically the rename dialog window's code and run it through an IDE independently.

Is there any advise that might help me in this?

Whether a file is buildable stand-alone depends on whether the class(es) in it are without external dependencies.

For example a dialog is almost certainly dependent on KDialog, so you need that class from either source files which you build as well, or from the usual library.
(or you replace the dependencies locally).

Cheers,
_