First time ever i'm focusing visuals before any code or other gamification things. Had lot of problems with Blender and baking textures. Used 4096 px resolution and it still looked very blurry in Unity. I decided to import cabin model to Sketchup and add all textures there. Result is much better. Also didn't need to wait years for baking. The result:
I'm happy to see that Sketchup solved my texturing problems. The next step is to fix scaling problems and do the same texture treatment for the furniture.