Rocky,
I normally do not voice opinions, especially without facts to back them up. This knife is bothersome. With the utmost respect to your father, I would be amazed to find out that this knife left the Randall shop in anywhere near this configuration! It has a good deal of "correct-looking" parcels, but equally as many red flags. I will not get into exact "problems" so as not to tip off the "forgers and liars" that frequently "lurk" (sometimes even "post") on this forum.
You asked for opinions and this one is mine. I believe that this knife came with the handle, spacers and sheath it is pictured with. "Other" modifications....I don't think so. Interesting knife though. Best, Captain Chris Stanaback