I wouldn’t… it’s a nice accomplishment for you, but if I saw someone post that as a skill or credential I’d immediately know they have no experience. This is like a an electrician saying they can install a light switch as a reason to hire them.

Pro tip: Enterprise and Consumer grade doesn’t exist in hardware. It’s all made from the same silicone at the same plants. The only real difference in the server world is server CPUs have more cores but less speed with more PCIe lanes. More cores with less speed is actually worse for homelab use because you will never need more than 8-16 cores at most applications aren’t threaded beyond 4. So it’s better to have faster cores. The extra PCIe lanes of a 6-8 year server cpu are mute when comparing PCIE3.0 to PCIE 4-5.

That’s a pretty old model ASA and isn’t even capable of 1Gbps of throughput. I wouldn’t use it.

AMD igpus aren’t the best for Plex. You would get way better performance with a similarly priced intel. 16GB of ram will work, but it’s kinda on the small side. I’d recommend 32GB. That motherboard is pretty expensive for an ITX, you really should use a full size motherboard for a server build.