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