I do, love them all
So for calcium, it's with Vit d3 5 feedings a week & 2 feeding with vit/min. The tube doesn't give off any Vit D3 so you need it for all calcium dusting. Repti-worms are full of calcium, so no need to dust them at all. Silkworms and hornworms are the same, full of calcium, so no dusting. Crickets, though, need dusting as noted above. The Reptisun 10.0 is great, but the 40 gallon tank is only 36" long, not 48" so you might want to recheck your measurements. You can take the calcium without D3 back, you won't need it.
And no heat rocks either. You'll need a basking platform, I use one of these, which is great, as it's a hide, too. This is Gabriel, he's 3 1/2 yrs old, I rescued him in Apr/12.
A log will do, too, just so wherever your little one basks, it's got the right temp going.
I'm so glad you're doing your research, as it's very important that they have the right UVB and basking temps to grow with strong bones. Did you read the article on here? It's tried and true and from a lot of experienced keepers, so check it out.
Here's a great nutrition list that I've used for the 7 years I've had beardies
http://www.beautifuldragons.com. check it out, it's very thorough.