De Minimis Safe Harbor Question

Hello,
I started my business in the beginning of 2022 as a SMLLC, this is also my first time ever paying takes-I am 20. I am using the cash method. My business made enough money for me to upgrade my camera equipment. Let's say that I made $7000 and bought a used lens from a retailer for $1000+tax and then another used lens from a second retailer for $1200+tax, and then a final order for a filter and battery charge for $200+tax. Based on what I read online, I can claim each of these under De Minimis Safe Harbor, but do I also claim the tax on the items? Second question, if so, do I combine all of the prices and just list one number, or list them separately? Last question, claiming these items will not in any way affect the supplies that I am claiming on my schedule c like the base cost calendars and shipping labels. Thank you.