Nikon Capture NX2 clean install on El Capitan

Please can any one help me find a simple workaround for installing Nikon Capture NX2 on a new mac running El Capitan?

Users who have Nikon Capture NX2 already installed on their computer before upgrading to El Capitan find the app still works.

Is it possible to use disk utility in some way to transfer the app directly from an older mac running Mavericks (that Nikon Capture NX2 works on) to a USB and then load the application on to the new mac running El Capitan to bypass the installation 'hanging' up and or bypass the SIP that maybe causing the installation to fail?

Tried this but still hangs up at final point of install ...

Load Nikon Capture NX-2 on Mac OS 10.11.2
• Mount the Capture NX-2 installation disk image (.dmg) file.
• Launch the Terminal application (located in Applications / Utilities).
• Copy the following line, paste it into the Terminal window, then press the enter key.
cd /Volumes/Capture\ NX\ 2\ Setup/
• Copy the following line, paste it into the Terminal window, then press the enter key.
cp -R .Capture\ NX\ Setup.pkg ~/desktop/Capture\ NX\ Setup.pkg
• Terminal placed a "Capture NX Setup.pkg" file on desktop.

Quit Terminal.
• Control click on the Capture NX Setup.pkg file and choose "Show Package Contents".
• Navigate to the Contents / Resources folder and delete the 2 items called "InstallationCheck" and "InstallationCheck.applescript".
• Return to the "Capture NX Setup.pkg" file and double click it to begin installing NX-2 as usual.

Also tried copying working app folder and library app support folder and dropping in to correct place - app opens but will not run due to not recognizing legitimate Nikon product key.

Many Thanks!