How big are you looking for?
I have a 34g system with a 25g tank for a sump. It has a "false back wall", a closed loop, a Sunlight Supply 4 bulb T5 fixture. The skimmer is a Remora but you could keep the skimmer you have if you like. I have a few different powerheads you could choose from including a koralia nano, or a tunze nanostream.
Here is a fairly current picture.
The plumbing (been cleaned up a little since the picture)
There are some minor scratches, but nothing to bad. The canopy is interesting to take off, but built to vent heat very well.
I am moving so I would prefer to do the trade after the move. I can throw in some coin or supplies if the motive to switch the tank is just financial.
I'm in Beaverton and can pick up and deliver.