I counted 10 arrowanas in there... s/he'd be better off selling the arrowanas off at $2K to $3K a piece. I think there's enough arrowana-crazed folks in the area to go for that.
speaking of high-priced used tanks... check out Big Al's sell off on displays
http://www.bigalscanada.com/Temp/Oak...ks_4_Sale.html
I always wanted a fish tank that I could dive inside... haven't been able to do that since I was a volunteer scuba algae scrubber at the Florida Aquarium.