OK. I've been playing with every conceivable location/installation of the radiator and fan shroud for the trunk of the '63. Because of that I haven't gotten anything really done on it. Just set there putting it in, taking it out. Measuring, thinking about it etc. It's done. I just went ahead and cut the floor open.
Placed the fan/shroud up under the floor.
This is the shroud underneath.
And the radiator in its place (just laying in the trunk) with the fuel tank in its place.
Still have to reinforce the opening and use foam to line the shroud and radiator edges for sealing. Now I have to find an inlet for air to the trunk. Then run all the water tubing.