Here is the hook I use. Bolt the hinge down tight. Run a loop of rope or cable through the center of the spring as a safety tether. The hook can pull the spring right to the bracket hole where you can gently get it seated.
I think I will be using a ratchet strap to pull the spring far enough to get into the hole. I noticed one of my hinges is broken and will need a little welding repair as well. That is a ways off though.
