Hey peeps

Been reading this thread for quite some time and I think it's time to get serious about building my own bike

So much useful information here, thank you all for posting/sharing!
I have quite a few questions and I thought you might be able to help.
First of all, I'm about 172cm (5'8"-ish) tall- ~78cm inseam. I was very sure about ordering in a size S at first but after reading through some of your choices, I'm quite unsure about it. Of course you don't know my other measurements, but if maybe somebody could give some inputs I'd be incredibly happy (don't want to order the wrong size xD)
Second (less frame specific), I don't really know what depth wheel would be optimal. I'd be racing rolling to hilly triathlons and am quite light myself, so worried about winds and weight. I was thinking about 60mm, is that reasonable (SAT C60 DB PRO NxT SL2 maybe

)
Third, and here I'm completely lost in the best way possible: The paint of the bike frame. I was quite sure about ordering a chameleon color, but hot diggity dog, the ice break color way looks so sick in some pictures posted here! Has anybody ordered one in purple or white or blue and could tell me if they think it's worth it?
Thank you again for all the information already posted here, helping me so much, really excited about this project!