[DrHank]

Dave, you are aware that nothing that you have except your 55 gallon tank (for a sump) is going to work on a 200+ tank! The 55 is even a bit small for the sump. Also, to set it up right is going to run about as much as a good used car.

I'd really suggest looking for a good used set up from someone downsizing or getting out of the hobby. Are you thinking of a reef tank or a large FOWLR?

I'd recommend looking at either a 180 gallon 72"x24"x24" or a 240 gallon 96"x24"x24". These are standard sizes and will be both more available and easier to buy items for.