A friend of my landlord has a 1-room flat to let in Kupchino.
Foreigners preferred! And not so the owners can inflate the rent price, but because they are convinced we make better tenants :) Don't have much info yet but will post it as and when. I'm told it's in very good condition, the owner is a mega-super senior doctor of some description.
If you're interested, PM me your contact details and I'll put you directly in touch.