The CPU cooler I chose is rather large (3 fans). But, I've seen some with just one fan (and a radiator below that)... AND, I don't plan on overclocking (or even needing to) anyway. Changing that shouldn't be a problem.
As for an optical drive... I think I can get away without having one. I have one on my laptop... If I should just happen to need one, I'm sure I can figure something out.
Edit: I was going to ask about installing Win10 when I don't have an optical drive... Looks like I can still use the disc, but “Create installation media for another PC” and use a USB flashdrive.
lol. Truth be known... I've already ordered the case.