Hey frog-lovers

For about the last 3 to 4 months i have been doing some very spaced out research on getting some dart frogs as I know a local breeder of some awesome D. Tinctorius 'Matecho' and I'd really like to try my hand at a naturalistic vivarium for these little guys, now i have had some experience with frogs as i also keep the Dumpy tree frogs and the Grey tree frog however i don't have any experience yet with terrestrial frog species like many of the PDF and so I wrote out a list of some supplies as i want to have a living vivarium established about 2-4 months before i even get any PDF just in case the whole ecosystem isn't really working out and I'd like your guy's opinion on what i have listed and some constructive criticism would be very appreciated!

Now the list has some basic supplies that I could get from various place's with the main ones being Amazon.com, my local Lowes and HD, and Josh's Frogs (Does any one have good experience with ordering frogs and plants from them?). So here it goes:

- Seachem Prime (The water conditioner)
- ABG mix
- Temperate Springtail Colombella culture
- Melanogaster or Hydei fruit fly kit?
- Lava Rocks (can that be used as a Hydroton alternative?)
- Terrarium substrate barrier
Now for the lighting would a simple house fluorescent bulb work?
And for the plants i was thinking of:
- Those Bromeliads at Lowes/HD
- A small Dracaena
- Weeping Ficus
- Spider plant
OR I was thinking of ordering some plants like...
- Neoregalias
- Humata tyermanii
- Wandering jew
- Philodendron
And maybe a Pothos?
Now I plan on housing 2-3 D. Tinctorius 'Matecho' OR if i can find a reliable online source of some P. Terribilis that would be awesome, now I have heard that P. Terribilis aren't recommended as a starter PDF by some people but my room is ALWAYS at a constant 72 degrees and gets no hotter then 77 during the day and at night stays around 65-68 degrees so would those temperatures be okay? And I am getting a free 40 gallon long tank from a family friend so would 2-3 Matecho's or P. Terribilis do okay in that size?

Thanks for all the hassle guys!

Abraham.