No, you dont need to do that. You need to check the wood core on the transom, stringers, and deck if there is one. Those areas can be reinforced with additional cloth and epoxy if they are in need of replacement, or show delamination. Epoxy coating the entire hull without cloth will do little to help stress cracks anyway.
Sitting for years doesnt weaken the hull, sitting with water in it rots the coring if the encapsulation is poor.