EDIT:
I just realized that I originally gave you info for Pat 4, question 6/7.
For Part 4, question 13 I would fill it in as:
13a: 126/3 Village No.15, Ratchada Village
13c: Puea Sub-district, Chiang Klang District
13d: Nan
13e: 55160
13f: Thailand
I don't know... it seems some people are overthinking this... This past September my son and I were in Thailand for him to meet his grandparents. We flew over with 3 large luggages of clothes for my inlaws and toys/snacks to donate to the school in my wife's town (total value +/- $800). We flew home with a luggage full of food and beauty products for my wife and her friends (total value +/- $300). I was not asked to declare anything on arrival to either country, and if I was, I would have put in about as much description to my answer as I did above.