Hi,
Arturia have not made the same presets you hear in that RetroSound video. But i think you can find at least some of the used samples - or something like them in EMU V.
Have you been going through the samples?
I think a Shakuhachi, a Voice, and a Windchime sample was used in the marked sounds.
About the Liquid Stack samples, then they apprantly was from a third party library called OMI. Have a look at the text for this RetroSound video:
E-MU EMULATOR II Sampling Synthesizer (1984) The Liquid Stack Sound:
https://www.youtube.com/watch?v=tKfRLrURHAABut perhaps you can stack some of the availble samples to get something like the plucked sound. I can't recall it's in EMU V as a single sample. I would like to have it.
As a side remark. I'm not sure why Arturia does'nt have folder 01-03. Is this a fault Arturia?