Ka-50/52 sales and progress

I’m curious about the rumoured sale of the Ka-52 to Yemen and what effect this would have on the export potential of the ’50 and ’52.

Also, I know that a small number of ’52s will be purchased (eventually) for the Russian Army in order to support SF operations but I’d like any recent information on this and on what sort of role the ’52s will be performing and why they were selected for that role over Mi-28Ns. Rubbish sentence but you know what I mean.

Some flashy pics might be nice too.