Xirb

If you plan to use that rig for both gaming and workstation, I personally would recommend going for a Ryzen 9 3900x CPU as ryzen tend to be more flexible with both gaming and workstation applications. The i9 does give more fps in games but the ryzen 9 outperforms the i9 in editing and video rendering tasks. Just a suggestion though

Why do you have two different memory kits? Either take one rgb or one non-rgb. They are not the same. And going 2 memory sticks is better then goin 4 sticks.

Yes it supports M.2, and can install it in either slot. 

Thanks Guys! Really appreciate the help. I'll just install all the software needed for the rgb. Just to get the theme I aim for.

Case website says CPU height is 160mm and the 212 has a 159mm height.  Looks like it will JUST BARELY fit.

Yeah, hopefully there variance goes that way and not 3-5mm short...

The variance is almost always conservatively compensated for. A cooler listed at 160mm may be shorter but not taller and a case that lists 160mm of clearance may have more room but not less. Basically, a 160mm tall cooler should fit in a case that lists 160mm of clearance. 

99,9% sure that it will fit. It's not that big of a cooler. If the measurements of the case are correct, you will be fine.

Thanks Guys! Really appreciate the help. I'll just install all the software needed for the rgb. Just to get the theme I aim for.

Every brand (or that I know of) have different softwares for RGB controlling. So no, it will not ruin your the white theme you will just have to install individual softwares for GPU/MOBO etc etc. if they are different branding and then choose whatever colors you like