Really glad everything came together for the build! It's very similarly to my own 2600X + 1070 ITX.Here's jhack's one2 distro kit for the s4m:
CPU: AMD Ryzen 7 2700
CPU Cooler: Noctua NH-L9a-AM4
Motherboard: ASRock B450 itx
Memory: G.Skill Aegis 32 GB DDR4-3000
Storage: HP EX920 1 TB
Video Card: MSI Aero 1070 itx
With an undervolted 1070 and 2700, I can't breach 200w usage, so I'm hopeful if a suitable card comes out one day, I can even move to a 2060s or 2070s.
While the 12v brick can be considered large, jhack's one2 plugin 160 unit is absolutely diminutive compared to hdplex's new 200w unit. It gives me hope that future improvements in 12v ac-dc converters will either mean smaller bricks or brickless builds without changing any of my components.
Btw, while I and others have reported audible coil whine from hdplex units -- there no such noise from this combo.
Concerning a smaller unit, we will be sampling 300W external kits that are 1/3 the size of today's available brick next year. It'll be quite a premium though!