Joey,
When I come out to your site, I will bring examples of different diffusers and tubing with me. I also have a couple of Rotary Vane compressors that I have rebuilt that I can bring but I think the one you purchased will work great.
I will bring parts as well as some AnchorLine weighted tubing to complete the system or show you what you need if you want to do it yourself.
Great post Bill, it helps everyone to see the dynamics of aeration. I sometimes assume everyone knows what I am thinking and don't fully explain the dynamics of aeration.
Joey, I would think about putting one on the other side of the island since the island disurpts the flow pattern in that cove. Just my experence in ponds with islands.
Lastly, if it is okay with you Joey, we can take photos of the system and install to post here after it is done.