Do I have everything for an upcoming Bearded Dragon?

Since no one else is replying i guess i'll take a shot at this.

1. 75 gallon is fine, mine is getting upgraded to a 125 gallon when i get time to set it up. If your getting a baby i might suggest a 20 long to start him out so he/she can find its food easier.
2. As long as it won't catch on fire you should be fine.
3. Fine, adults will shred paper towels. Indoor/Outdoor carpet is another good choice for young dragons. You can keep older dragons on a 50/50 playsand topsoil mixture as long as you feed them in a dish or outside the cage. It's easier to spot clean and allows the dragon to dig and stuff.
4. Set up your cage and use your thermometer to measure how hot your basking spot is. If you get 100* you should be fine.
5. Should work, if you get a t5 you don't have to mount it inside the cage. Might want a longer bulb for more coverage.
6. Honestly all my dragon does is bask and glass surf.
7. No experience.
8. Humidity isn't a big thing with dragons. High humidity can cause URIs but thats it.
9. Dubias are great if you have a colony but buying them will get spendy. Crickets are great until your dragon reaches 16 inches then you could switch over to superworms. I feed my beardie superworms, butterworms, crickets every once in a while, and giant mealworms when i can't get superworms. Hornworms and Silkworms are great treats for beardies because of their high moisture content. Variety is key with any reptile. Veggies i tend to buy bunches of parsley and cilantro and alternate between the too. Leafy greens go bad quickly for me so my beardie only gets them every once and a while. I also feed carrots, zuchini, apples, yellow squash, and yams along with herbs. My beardie is weird and goes nuts for crested gecko diet so he gets that as a treat.

Taking your beardie outside is great and all but you shouldn't use it as a uvb substitute IMHO.

Have you you thought about a powersun uv instead of the reptisun. Its heat and uvb in one. You can use it in a range of up to 6 feet. And you replace yearly to every year and a half.