I simply am at a loss for words. I did not have a chance to read this entire thread in it's entirety yet but I am just in shock. This is the greatest pond build I have EVER seen and I can see no corners were cut on this. When I read things like this it brings a smile to my face seeing how much time blood sweat and tears go into something of this magnitude. I am a 21 year old novice in this hobby, clinging to stingrays, aspiring to have something of this caliper in my future.
True motivation for myself as well as the rest of the fish keeping community, kudos to you my friend!
Edit: I also wish you lived closer I would pay to visit a pond like this!