You may offer them free to return empty basket or foam box to CNX if K.Pinat agree. You may take visit Mae Fa Lung Chiang Rai as well.
How about long Gong from South I do not understand They always move by truck but big Damaged when arrived BKK due to poor packing by Paper box we can advise them to pack in Plastic basket and go by air from Hat Yai or Nakorn Srithamraj. Shupment arrive fresh and last long shelf live. Please try to contact Army or Police who promote 3 southern provinces’s produce to sell I BKK to come by air.