Could the weight of a launch tower or some of a space elevator be mitigated balloons?
Similar to the children's air inflated jump houses could a tower be inflated with hydrogen/helium with different material to offset the weight needed to run a high voltage power line or rail that would also serve as the tether line?
The tower would only carry electricity the vehicle would provide thrust by electric turbine engine or other electric propelling technology.
Location: The most wind calm place on Earth though all the wind columns to minimize wind tension.
Repair: Service tubes can be filled with a helium/oxygen mixture to optimize air weight for repair from with in the superstructure. Chambers are pressured to be buoyant to the elevation of each chamber. A separate internal bladder would lift the structure. During high winds it would just lean over and/or retract.