Your laptop needs one of these: Cooler Master NotePal X-Lite II Slim Laptop Cooling Pad - Micro Center
Works great, I used one with my gaming laptop and it makes a big difference.
As for your parts list, you selected a glass front case? Please switch that for a "mesh" type. If you really want that DVD drive then you'll need an entirely different case anyway since those 011's don't have 5.25 bays.
If you primarily play games then you'll be happier with the 5800X3D. The 5950X is not a gaming CPU. The gaming profiles in Adrenaline/Ryzen Master all turn off one CCD with a 5950X. Because as fast as CCD <-> CCD communication is, it's faster and better when gaming to have all the threads on the same one. So, buy a 5950X only if your use case needs that many cores for something that isn't gaming.
Do you already have an m.2 drive? You've selected a SATA SSD. Those have read/write speeds around 500-ish MB/sec. The m.2 4th gen do around 7,000-ish MB/sec. So yeah, big difference loading levels.
I have a 6800XT myself and it does fine at 4K gaming, good choice.
Greetings, To answer the reservation question: if you can't reserve a specific item that is in stock, you can add it on at time of purchase in-store. That would not be an issue.
Your build looks pretty good. There is thermal paste that comes with the AIO if you don't want to buy some. I have sold that kit of ram with Ryzen and I've had good results with it. There are ones that are optimized for a certain CPU, but that doesn't mean it won't work with another CPU brand. Worst case, the technician will contact you about switching to a different kit.
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