I believe that a 1/44 scale kit is available from Revell/Germany. I also believe they bought the molds from SegaModel from the Ukraine.
The Ekranoplan was designed to ferry large amounts of troops and/or cargo to a seaborne invasion FEBA. Basically, it ran like a boat until its stubby 'wings' compressed oncoming air until it 'flew' on a cusion of air; the difference between it and a standard Air Cusion Vehicle is the Ekranoplan depended on speed, where the ACV, or hovercraft, trapped high velocity inducted air under the craft with flexible bladders, or skirt.