Just tried something.
NI Vintage Organs C3, I started with the "Rock Basic 1" preset but changed the following. DI setting, rotor off, drive zero, EQ flat
Put it through ACME Bargig's Preampus Dickhead, then through LX122. That's close! I also tried the other ACME Perampus heads, but "Dickhead" is the one!
I also tried Shabby Chic's Kontakt RMI piano layered on one of the manuals to try to get to that elusive Jon Lord sound. It's not quite there yet, but as close as I have been.