It seems that Borisov Dom is the same as the main Paklenica hut, which is more or less the same hike than we did. We just didn't get food there, but there is a couple of other private houses where food is served just above, the names are in the photos (can't remember). There we were offered free Rakia and good food.
We didn't go further for other reasons, such hike was already quite an achievement for a 3 and half years boy like Mikolaj ! As for mines, I was puzzled by the fact some trails located north of the main summits were drawn with red and yellow. A look at the legend said "trail cleared of mines !". However the whole area of the national park is supposed to be clean nowadays.