1 - Typically there would be an eye to hook this to. The aft seats usually hook to the cargo bungee.
2 - Tool is intended for valve removal or tightening. They don't seem to work with the valves as tight as they make them. If you need to replace the valve, we would supply a metal tool.
3 - Paddles float. They have foam plugs to make the shafts an air chamber.
4 - We don't cleat the kayak sail due to kayaks being pretty tippy... you want to hold the sheet.
Director of Parts and Accessory Sales
Hobie Cat USA