More info on the title, This is just a confirmation with everyone here that I'm okay to buy some new things for my PC.

I bought my PC stock with these specs:
CPU: 11th Gen Intel(R) Core(TM) i5-11400F @ 2.60GHz, Air cooled
8 gigabytes of DDR4 Ram,
550-watt power supply,
And 1 terabyte of HDD

I now have these upgrades:
32 Gigabytes of DDR4 Ram,
850-watt power supply, (bronze)
And have yet to install an NZXT Kraken water cooler for CPU
(because waiting to buy a new CPU after this discussion.)
Just for notice, I do have a 15m fan now, specifically Noctua NF-A12x25 FLX

Anyways what I came here to talk about is,  Firstly: Will this GPU work and will it fit securely? The one I'm looking at is this GPU, I picked Gigabyte for its slim and compact design, hopefully, able to fit in with my fan, Need it for RTX (Just in case you were wondering)

Next up, I'm looking to buy this amazing CPU, I'm confident there's nothing wrong with this as it is stated on the official Aurora R12 service page, But just for a little double check I wanted to ask you guys.

Thank you for taking the time to read/answer this, It's a big help. If you have any further questions I will be actively replying to your comments/replies. (sorry for the long body I wanted to make sure I got everything).