I've discovered your thread and read through it all . . . . IMPRESSIVE, and a hard long journey!! Dedication and hard work is definitely evident to accomplish what you've done. Congrats!
Curious of the 5 or 6 years to build, had the fish farm been operational all that time?? So the pond is for sturgeon?? Would love some info on how all the 1800 gallon water tanks and other contraptions necessary to grow the fish all work together.
Also noticed on your Facebook, that you've got
Ford Transit Connect vans for your fish delivery.
Have you considered CNG (compressed natural gas) to power those vans?? Ford can sell a cng version so you can fuel for $2.20/gge to $2.75/gge all across the state of California. If you have natural gas service at the Passmore Ranch, you could install your own CNG compressor and fill vehicles at around $1 or $1.50/gge on your own property!! Ford offers full line-up of CNG capable pickup and delivery trucks as well (ie F250, F350, F450, etc).
Best of luck in finishing house/garage how you've dreamed it . . . . thanks for sharing with GJ along the way. Post some pics of the garage as we'd love to see how it turned out.