Airfix's kit is good for the Hormone-A and -C; the Maquette kit makes a superior Hormone-B (but it's best if cross-kitted with Airfix bits.) There was only one civilian KA-25, and that was the -25K, a flying crane that was an evolutionary dead-end.
Zvezda and Amodel do several variants of the KA-27/29/31 Helix, but that's a different bird altogether.
""Expect nothing - that way you won't be surprised when it's precisely what you get.""