First off, a big thank you to everyone who has complimented my tank! The tank was truly a joy to own, and was problem free the whole time.
As it turns out, my family outgrew our old home before the sharks outgrew the tank! It was time to move, and I couldn't take it with me. I'd always known that the tank would be "hit or miss" when it was time to sell the house. Many people who came to see the house were intimidated by the tank. Most felt it would be too much work to care for. I made it known that I would be willing to remove the tank before sale, but the buyer decided they wanted to keep it.
A few months later, the buyer contacted me looking to get rid of the sharks. Seems they decided they would rather have the floor space, than the tank. The sharks were given to a local shark enthusiast with many years of experience, and multiple tanks. I contacted Phixer (also local) and told him where he could find lots of parts for free, if he'd be willing to tear down the tank.
The tank was tore down, and as they say, the rest is history.