Here is 2 pictures, side and back to the blade I just bought. The hook has to come off in order to hook the top pin.
You have a NON quick hitch compatible implement.
To make it Quick Hitch compatible:
Take the bolt out of the bottom hole and move it to the top hole.
You will need to get a longer bushing to keep the spacing proper.
Pipe works for the bushing.
Then weld the rest of the angle bar onto the vertical bracket if the welds on it already are not sufficient.
Another option is to install a set of short carriage bolts from the inside out and put the nut on the outside of the slot.
Then the hook will work properly.
Moving the hook down will also work but if you have any other implement that are QH compatible you'll have to move the hook all the time.
I found it much easier to set everything up as the same pin spacing.
If the bottom pins are too narrow with the bushings installed you can buy longer pins.