I have greenhouses that I made myself by a blacksmith with 2-inch pipes. They can be used in nurseries, livestock pens, and for chickens if covered with shade netting.
Each unit is 3 meters high, 6 meters wide, and 8 meters long.
They can be easily connected together as they are designed to be assembled, disassembled, and are suitable for that.
Area of one unit: 6*8 meters, height 3 meters. Price: 300 riyals.
Disassembly and transportation are the buyer's responsibility.