Roland, yes, before I tried to install KORD V2, I completely uninstalled the previous version first. Thanks for the suggestion.
Umberto, I did confirm again this morning that the version of the installer I was using was the latest one and, when run, I did see the option to install for Prepar3D V5 (although I am running V4.5). The installer I have been repeatedly downloading and running is the one obtained via the "Download for P3D 4/5" button at
http://www.fsdreamteam.com/products.html.
In any case, after trying again this morning, things appear fine now! The only thing I did differently this time around was I deleted the files present in %HOMEPATH%\Documents\KORDV2_Installer, left from the previous attempt. Not sure if this was the cause or not, but I'm just running with it. :-)
Also, interesting info about Prepar3d V5 - I didn't even realize this version was available. I will have to check it out later, thanks.
Have a great day, and thanks again for the help!