So, regardless of if I decide to stream or do a video of me assembling my PCs...
...I thought it a good idea at least to install the card readers I have into the cases, and just leave them there to be connected later, and this time learning how to better cable management inside a case next time I do anything with them, which will probably be after I get the fans I plan to order, and also install the new PSU into the case my current rig will be using, as I think the 850W PSU will better be used with my "new" rig, given the additional power requirements it'll have!