Those lounge options are going to be very disappointing. I've been to ANA and KAL. ANA is ok, will have the best food of the bunch. It's decent for a PP lounge but really inferior to the JL J lounge in T2. Mind you it can get crowded and at times will not allow PP visitors.

I visited KAL as a PP visitor some time ago and it was really nothing special. Fine for somewhere to sit but I wouldn't pay, you're better off getting a nice meal in the terminal. Very limited food, not much beyond a few packaged foods.

I think your shower question is answered on the PP directory. ANA lounge had showers but the wait was much longer than I had time to visit (>1hr).