We have our own site, my partner on our site, Jefe, once made very nice looking troughs, He painted them with aboridginal art designs. It was very cool looking considering what is inside the cages is what the art was made from. A cool circle you know.
Or you can build a cage on top of troughs, That really needs to be done. There is no real need, for the monitors, but some folks put their needs ahead of the monitors. So it could be done in many many nice ways. I often think of nice ways to do this, but do not have a need to push me to do that.
The real problem is WOOD. it sucks for use with varanids. Moisture and heat, completely render wood useless. No matter what you do. Consider, its more then heat and humidity, its also time. If your going to keep monitors for more then a year or so, then wood will be a huge problem. If monitors are an excuse to build cages, then go for it and use the cage for something else after to trade off the monitors. Consider, I AM A BUILDER. I know what your doing. Before I switched my major to biology, I was a Mill and Cabinet major in college. It was that class that allowed me to succeed in life. hahahahahahahahaha true. Our first semester we were told to design a class project. And we did(I was the freshmen class foremen) Then the dang instructor threw us a curveball. He then told us to build the tools to make our designs. So we learned to not be restricted by exsisting tools. That one particular thought has allowed me to succeed in areas I may not have. Its like this, If something does not work, make something that does work. It really is all about that simple.
This thing we call keeping monitors is not confined to wood or glass or plastic or metal. Its not confined at all. Open up and use your imagination. I know you have one, I see your cage set up. Make it fun. But wood sucks, particularly the wood thats available now.
Consider, fridges were made of wood, then lined in metal, then the woods gone and are now metal and plastic. Wood and water only work well together for wine barrels, hahahahahahahaha Cheers