Mission AND promise for the next 6 months?!?
You're kidding.
Get in koi angels for potential breeders, and sell enough fish in the next few months to repay the fish account.
Get some silvers spawning, broker is looking for silvers.
Practice drilling tanks on a couple broken ones in the garage, then start drilling functional tanks.
Run some pvc lines to the fishroom, eliminating the hoses on the basement floor.
Set up automated water change system.
Get aquatics supplies out of the family room & into the fishroom or storage.
Reseal salvagable tanks, & set up the 63 gallon with dividers for breeding pairs.
I promise to get half or less done in 6 months.