I went back out to the property today to take some updated exact measurements since the last time I did a "quick and dirty" measurement was right after the pond was dug back in February.
Obviously there has been some settling and my OP measurements are inaccurate. I've attached a sketch of the pond.
It averages only 12 feet deep. I've attached a rough sketch of the pond along with more accurate measurements.
Now I'm thinking a 1/4 hp compressor with a two way manifold would be the way to go:
https://www.pondandgardendepot.com/...-compressors/matala-mpc-aeration-system/It seems more reasonable.