Both the one above and the list you first posted are dreadful value.
The 7740X offers very little over the 7700k with all the added cost.
Also some very overpriced components there.
Intended use?
You give decent advice majority of the time. But, price is relevant to the purchaser. Next as always you will tell him get Ryzen if he says streaming, producing. I've seen it a million tiMrs from you.
The 7900x is the best CPU on the market "if you don't care about price" as long as your not strictly playing games. If so, he is better w. The 7700k. I just gave him almost the top HEDT available. Now if you want to save money get a Ryzen.. Amazing CPUs but not as good as a 7900 or 7820 per Toms reviews. I have the money and it seems he does so value is subjective.
Give him advice like I did on how to maximize the 3500E he is spending. Also, he didnt mention this being only a gaming rig. Little things like quad channel or the amount of PCIe lanes can sway someone.
However, therefore should be significantly better.