Cool! You are not too far off. Let me help you out.

3. Humidity should be around 80 percent.
4. The heating pad should be attached to the side of the enclosure and not the bottom. If they need to cool off they will dig deeper.
8. Don't listen to the employees. Nightcrawlers are the way to go. Give a day or two to adjust. Offer crickets nightly till it starts eating (one or two). Take off back legs and a couple front legs. Dont dust yet. Make sure the crickets are no bigger than the distance between the eyes. When it starts eating offer crickets from tongs (grab crickets by the head and give a small squish). When the frog starts eatimg crickets from tongs start offering small nightcrawler chunks, and start dusting.
9. You need two different types of dusts. Calcium with D3. And multivitamins. I use for vitamins.