Well congrats on getting the new tank and stand. Now on to the questions....lol

1. you're going to want to consider a glass lid. It helps maintain humidity, temperature and bugs inside the tank. Fruit flies get everywhere. A glass lid with about an inch wide strip of ventilation screening is ideal depending on what you're keeping.

2. The plants will require lighting to grow. Recent studies have shown that UV lighting may not be the best for the frogs. this makes sense since they spend time in nature under the rainforest canopy and not out in the sun. A regular lighting hood with 4000-6500 k fluorescent tube or CFL dpending on the plants lighting requirements is adequate for the plants and viewing. 6500k imperfect for all plants.

3. The false bottom vs hydroton vs everything else is always a fun topic. Ultimately Lynn said it best. Personal choice. In a nut shell, False bottom is lighter making the tank easier to move. Hydroton is heavy but "good bacteria" grows in the little cracks and crevices. Only way to take advantage of that good bacteria is running water so it's of no real help to you since you're not doing a water feature. Egg crate false bottom with zip ties is dirt cheap and you'll have tons left over for future builds, but takes time with measurements etc. hydroton is literally wash and wear. Wash it well and place it all in. Again Personal choice. You will want to consider using a 2 inch piece of PVC pipe with a screen so that you can drain the water when necessary. If you're hand misting and you use a glass lid, humidity should maintain requiring misting once a week to once every two which minimizes extra water accumulation. Minimal evaporation will help with that.

4. As Lynn said, the misting systems aren't complicated and they're nice but it necessary. If you only have one or two tanks and have a minute once a week to spare, you can mist a tank with distiller water in a spray bottle. Only light misting, to wet the leaves and substrate slightly is required. Never soak everything, it causes soil and root rot as well as breeds harmful bacteria in the soil. I have a repti fogger and my frogs love it. As soon as it turns on the males begin calling. I only run it about 10 mins 3 times a week and I fill it every 4 to 6 weeks. I usually end up running it to display for guests since my humidity is usually over 90 percent. It's not programmable on its own a timer will work but it doesn't really need to run daily unless you have real humidity problems. I just click mine on here and there. Again use distilled water to keep from getting water spots on glass.

I hope this helps. Good luck