BBM is only available for BlackBerry devices and will not work correctly on Android devices. Although BlackBerry Messanger isn't available for Android, some developers tried and emulated the software to work on Android but they failed due to the limitations of the Android system. BBM takes advantage of the core functions of the BlackBerry which are not available for 3rd party users. The answer to your questions would be NO in this case, you cannot install BBM for Android using official ways or applications.
Maybe you could use an old bb that's lieing around and download the software to your phone including the pin x