Vegetables and Fruits Cold Store

the features of store will be : (1000 m2 an area), 5 m height, cooling temperature is between 0 - 20 C . I am respectfully request you provide me with your proposal that includes two options , first one be includes a complete offer for all pieces (Wall and roof sandwich panels, doors, steel structures, cooling equipment, electrical cables, switches, circuit breakers), the second option be includes only cooling equipment. I am looking for your kind and prompt response.