The article suggests that at least one of them was purchased via Crowd Funding for about six million bucks.
The Russians posted online a video of the alleged helicopter taken from a UAV and, while video quality doesn’t allow to ID exactly the aircraft, the tail boom shown is resembling more the Mi-24’s one than the UH-60’s. Either way, neither helicopter can transport 20 fully equipped soldiers.
I suspect that Mr Dixson might be able to share a story or two about how many can fit into a Blackhawk when you pull out all of the seats and stuff troops in ... Might stuff 20 in.