So, i captured the original Pal Pan And Scan laserdisc of Empire with which to take the histogram for it`s respective film, and lo and behold the results are stunning. First a comparison using the histogram on GOUT and SE:
It would be cool to see some shots from the laserdisc you're capturing the histogram from! I also tried auto-colourmatching the entire frame, but found the colours to be inaccurate that way in Fusion, so that's why I decided to use the original and match it accurately on top to transfer the colour pixel by pixel. Never tried the avisynth plugin you're mentioning, so it would be cool to see how your result looks compared to the source!