Ordered? Uh oh.
Chickens need 4 sq ft per bird in the coop and 12 sq ft in the run.
I've never had mites or lice. If I did, if treat with ElectorPSP. My birds bathe daily in dirt or decomposed wood chips.
Can you post pictures of your coop and run?
Where are you located in the world? Climate will affect how you design/improve your setup.
No poop trays.
No DE or lime.
I keep food and water in the run, both elevated to minimize what will get scratched into them.
Food is in the hanging troughs in...