I am building a prop for Aladdin's floating carpet. It will be a see-saw with the 2 characters on the carpet 300 lbs, 5 ft from fulcrum. 1500 ft lbs pressure. My question is how do I build a fulcrum 3 ft high, must have small footprint and movable. What is the torque on the pivot point,? how much weight is needed at base of fulcrum?