My second SFF build.
Warning! Aforementioned parts do not fit in the case. Choose thinner GPU or smaller CPU heatsink. I had to bend case frame in one corner to fit all parts in. Fortunately there are no visual marks. But you should look for better options.
Other things to consider:
The build in extremely tight! Prepare proper tools. You should also have enough time and patience to do it. (I had to disassemble and then reassemble the system three times. But that's just me.)
My current airflow configuration leans to positive air pressure inside the case (3 in, 1 out). Need more time to evaluate it.
Two bottom fans (NF-S12B) connected to the GPU. Unfortunately ASUS GPUTweak II software is limited in fan speed curve tuning (50-100% speed only). I would prefer more flexible approach. There is still an option to connect it to the motherboard though.
Back fan (NF-A12x15) is working in pair with CPU heatsink fan (NF-A15) which is more powerful. I wonder if back fan would bottleneck an exhaust. Need more time to evaluate it.
There was no RGB sync cord with the motherboard or GPU so the GPU "Aura" if out of sync for now. Though ASUS web site says ***RGB extension cables are included.
There are two white leds on the GPU next to power connectors which are always on. Didn't find a way to turn it off yet.
PS. I am very satisfied with the result. A1 aesthetics makes it perfect for me.