The following vendors often have Emkog and related albums in stock:
Bandcamp:
https://delugegrander.bandcamp.com/
https://birdsandbuildings.bandcamp.com/
The Laser's Edge: www.lasercd.com
Synphonic: www.synphonicmusic.com
Wayside Music: www.waysidemusic.com
ZNR: www.znrcds.com
Mantis Music: www.mantismusic.us
Caerllysi Music (UK): www.caerllysimusic.co.uk
Lizard Records (Italy): www.lizardrecords.it
Musea (France): www.musearecords.com
Just For Kicks Music (Germany): www.justforkicks.de
Garden Shed (Japan): https://www.gardenshedcd.com/
Disk Union (US, Japan): http://diskunionusa.com/ https://diskunion.net/st/shop/
Amazon: www.amazon.com
CDUniverse: www.cduniverse.com
Discogs: www.discogs.com
Deluge Grander is featured in the excellent 2010 documentary on progressive music, Romantic Warriors, which can be purchased on DVD here: www.progdocs.com