I would imagine to take it down would be easy enough . If the lines going up were plastic ,woven carbon fibre /whatever with a line up one side and down the other I doubt lightning would be attracted . Lightning wants a quick path to ground . adequately insulated tethers would not offer it that .So how do you deal with the lightning issues and changes in direction?
Take it down every time a storm approaches and hope its enough?
Sounds rather high maintenance in terms of dealing with weather.