Here is the template all marked out. We had to shift the fan to the driver's side some to clear the heater fan motor. I really wanted the fan shifted to the passenger side so as to give more access room for the petcock but that was not to be. I can still get to the petcock but it will be somewhat awkward. I might end up using some tubing/pipe to move it somewhere more convenient.

At this point my pulse rate dropped to the upper 40's and I was pooped out so we called it a day, Covid after effects, got to love it. We did get the template transferred to metal and most of it cut out. I decided that I needed a dimple die to take care of some of the excess sheet metal which I didn't have, so this made a decent stopping point anyway. Still have to cut out the big hole for the fan to blow through. The circle shown is the outer diameter, it's about an inch smaller for the inner diameter of the housing. Which will give me a nice clear area to mount the foam rubber weather stripping to seal the fan to the radiator.