No apologies necessary - I have a lot of chaos right now, too. I hope yours is more fun than mine.
OK - here we go. Pardon me, upon closer review of my images it became blindingly apparent that I am an absolutely terrible photographer.
I puzzled over several parts for quite some time, but eventually settled on everything - usually erring on the impulsive side. The case, motherboard, and cpu (hmm.. not in the picture.. oops) were easy, as they were the basis for the build. Speakers and keyboard/mouse were inconsequential, but I'm enjoying them.

The three drives were essential, but flexible on size/type. I was going to reuse an HDD from my existing system, but opted to run it in parallel for a while instead - 2.5TB for $132 sounded very reasonable, and I'm glad to have a little more wiggle room in there. The ODD was going to be an external one, but I was surprised to find my spouse had an opinion on the matter - we debated a bit, but I quickly came to my senses and acknowledged her wisdom - no harm in a $23 internal - maybe I'll pick up an external down the road. The SSD - yeah - that was one of the impulsive buys, but it was a great deal at $199 - I'm glad it comes with an "Editor's Choice Award" moniker - it makes me less concerned about reading/comprehending the detailed stats.
That leaves memory and cooler. My specific memory wasn't on Asus' Qualified Vendor List, and I was kind of crossing my fingers that it would work. I decided 1.35 volts was a good idea, since this system doesn't have much cooling versatility - works fine. The cooler .. well .. heat pipes are just cool. I didn't even know what a vapor chamber was before this process - I thought heat pipes were just empty pieces of copper, but they actually have a natural circulation cooling component to them - how cool is that?! And it looks neat, too. Totally impulsive buy. **edit** my motherboard has good overclocking capability, and combined with my impulsive cooler buy, I have no excuse now not to at least learn a bit about overclocking (no attempt yet).
So, enjoy the pics. These six take me from parts through finished cable routing (hours of fun). The most versatile tool in my box is featured in one of the pictures holding wires out of my way.
The last image shows the two parts of the cable routing I kind of messed up.
I mistakenly thought I could snug the 24-pin power cable up against the back of the power supply, but the clearance for the motherboard just wasn't enough, so I had to rethink that one. The other was the reset switch twisted pair coming from the back of the case ... there was plenty of slack, and my routing choice was not as clean as it could have been ... but by the time I realized, it was more work than I was willing to do for the benefit.