All you have to do is lean the radiator forward about 3/4 inch, and the center hinge rod will be clear of the attachment point on the top of the radiator shroud. Then you (and a friend) can lift the entire hood assembly (all four pieces: sides and top pieces) off the car and you're all set.
To do so, you simply remove the bolt attaching the "vee" rod from the firewall to the radiator where it attaches to the radiator and pull the top of the radiator forward until the front end of the center rod which connects the two halves of the hood is clear of the radiator shell. If you have problems getting it to move far enough, you may have to drain the radiator and remove the upper radiator hose to allow the radiator to lean forward.
Good luck with it and have fun!
All the Best, Chip