I actually made it quite easily. I got from one plane to the other in ten minutes without any rushing or running. I wasn't the last to board either. This was, of course, still within the same terminal.

I bought some underwear, a t-shirt and toiletries and will try my luck with Aeroflot. TBH, I've got no inhibition to suing them as I have done it successfully before (though that was EU delay compensation - It does, however, tell me my local court judge is sympathetic to these types of claims).