I have a couple of hardshell kayaks I need to store in my new garage. I have a couple of bike hoists I was think of adding some webbing to and using for the job. The plan is the hang the kayaks from the ceiling over where the car is so I can just lower and raise them from the roof racks. My house has a metal frame. What would be the best way, best fittings, to use to attach the hoists to the metal frame in the ceiling to take the weight? Or would I be better off getting into the cavity and putting some timber across the top of the frame and attaching the hoists through into that?