The weather is breaking and I am getting anxious to get going.
Here is the collection of all my parts ready to be installed. I think I have enough to keep me busy.
In addition to these parts, I have a large window to install also.

Now when looking at the water heater and power plug receptacle installation, I realized my first error. It seems that last fall when I was in a hurry to get ready for hunting season use, I drilled the power plug hole right above where the water heater exhaust will come out.

The tape is just a quick approximation of what I have to cut out for the water heater.
How many think I should not/cannot locate the receptacle right above the exhaust vent for the water heater? I for one think it is a bad idea. Therefore I must move the hole over about 16 inches and find a way to plug the hole.
I have considered a fake plug cover there, a fake water filler or just a piece of plastic or aluminum over it. Or I could raise the water heater up so that the square hole (12 x 12) consumes the round hole. Then I waste that amount of space under the heater. Hmmmm, what next?