Wind damaged Ficus may look dead, but may also be pretending to be dead.
Prune the tree branches back by 1/4 or 1/3 of their original length, but leave the leader in place.
This renewal pruning will help the Ficus resume it's growth. The reduction in tissue that the plant has to support and it can focus it's energy on branching.
By next winter you can prune out any dead material that needs to be removed.
Regular fertilizing can be resumed in the spring after you see new growth.