I would suggest more light. Around 60 watts. That's the one thing I wished I would have done a long time ago.
Also are you going to use silicone or black paint to hide the false bottom? If not I would cut away another section of the eggcrate so it is not flush with the front glass. This way you can put rocks in front of it to hide the whiteness of the eggcrate. Build a small wall on the front of the eggcrate to keep the rocks from falling down underneath it. Extend the screen down to the wall as well. That is how I did mine.
Then I added some gravel.
This way it appears to be full of gravel but still has the benefit of a false bottom, which also makes it much lighter and cheaper.