I watched a couple of videos on YouTube to help me when I first built mine but other than that, it was easy. It was a lot easier than I expected. If I can do it, anyone can do it. Also, credits to Vintage for helping me choose the right parts. ;p
Are you looking for opinions on the hardware or a guide on how to assemble? You can always buy one from me. They usually start at about $5000.
Exasperaties you considering on adding RGB lights? I think you need to buy the factory RGB version. Or you could just get magnetic RGB lighting strips which you might need to convert the power connector (Could be a dc or wall connector) to a standard female molex connector.
When we were looking at a part picker the rgb sticks were in 32gb not 16 I don't think Opinions and guide on assembly