You are getting way too far ahead of yourself.
Start small. A closet, or a tent or two. Begin with just a couple of plants. Do a full grow or two, then you'll naturally learn how you want to expand.
Starting off with thousands of dollars worth of equipment is ridiculous. Half of that stuff will likely sit on shelves before your first grow is even over. There's a good possibility also that by biting off more than you can chew, you'll just throw in the towel, and all of the equipment will be useless.
You're asking very basic questions here that someone wanting to set up a 10 pound grow shouldn't have to ask. You're unfamiliar with setting up a grow room, and you're no where near the point of even thinking about CO2.
Prioritize. Start with just the very basics, and get familiar with them. Then start adding stuff as you realize you need or want it.