Hi,
I built 3 different, quarter scale (25% size)... prototypes...
Used a simple Futaba radio control system. It works fine for these small versions which proved the designs but the full size will need a commercial flight control system/batteries/ heavy lift power systems/auto pilot/redundancy, etc.. what I really need is to find a person or company that I can consult with on the areas I am not knowledgably in.