I only have dart frogs, I've never kept the amphibians that you have. I know the FBTs need land. You are going to need land plants too. Everyone likes bromiliads, but most really need to be mounted. You can grow jewel orchids, small-leaved peperomia, creeping fig, many others. Anubias also makes an OK terrarium plant.
There are many ways to make a paludarium. Having enough water to support fish and having dry substrate that is not sitting in water is the challenge. Far far easier is having a terrarium that has a water feature-- it is a question of scale. 3-4 inches of water below a false bottom that is cut away in a portion you can see the water is easy.
As for lighting, average "low tech" lighting for non CO2 would be preferred.