You could drill a hole in the bottom, and have plumbing through bottom of tank. Raise the hieght off the bottom with a supported cut to fit plastic mesh. Cover the lower portion so this would not be seen. Then build on top of plastic mesh, thick lava rock to not go through mesh, etc...
This would allow you to reach bottom easier to maintain a clean tank. I would still go with nice tall/narrow piece of driftwood angled downward to add character to go with jungle val, grasses, and mosses.
Fish def schools that swim at different height levels would be ideal. Low/medium/high swimming schools would be great! Really to many options to list when it comes to the fish... But good luck with whatever decision you choose to go with! If you have any questions feel free to PM me, be glad to help.
The worst defeat in the world, is when you give up.