Hello @Thebigmac11 and thanks for posting on the Microcenter Community Forum. Looking at your list, it actually looks good. I wouldn't do anything with RAID. No need for it or the RAID controller. Unless your gaming pc will be acting as a server that will be up and running 24/7 with no downtime, no need to use RAID. Just back up your data to an external HDD once a week if you are utilizing a lot of data (ex., downloaded games, documents, etc.).
The RX 560 is okay, but in todays gaming look at the Radeon RX 5600 or 5700 XT. The Nvidia RTX 3060/3070/3080/3090 are good cards as well. See the link below on Gaming PC builds.
I've also included Microcenter's custom pc build option to pick your parts and see the total cost.
PC build link:
Customize Your PC build/Microcenter Link:
Submit photos and a description of your PC to our build showcase
See other custom PC builds and get some ideas for what can be done
Services starting at $149.99