Hi,
Congrats on the 4 others being sold. I know it is difficult to get rid of the bigger ones for obvious reasons. I just ordered a 300 gallon tank, due on Saturday. If you have trouble finding homes for those two remaining ones, and need a home for them, I'm happy to oblige. My nature classroom does not have a large budget, but just wanted to put this offer out there for your consideration. (I bought this tank, for my current group of gars, including one Tropical.)
Good luck with the sale, also!