You can even install KDE on Mint, and configure it however you want.
Personally, I'd advice against this as KDE is not supported on Linux Mint. While this doesn't have to mean much, it does mean a lack of polish and sophistication you might expect on Kubuntu or Fedora's KDE Spin or openSUSE (on which KDE is the default DE). This might result in some edge-case bugs and other mishaps that might trample your experience; thus giving you the wrong idea about KDE. Instead; consider booting into a Live USB of any distro that comes with KDE by default.