Build Advice S4 Mini R4

[LKS]

Hi everyone,
My first post so I hope it's in the right forum!
I'm enjoying the challenge of doing my own SFF builds.
I started with a DAN A4-SFX as an HTPC and light gaming build and that build went very well.
I love the SFF and silence of the PC so I've decided to replace my home office PC that I will also use for gaming up to something like Forza Motorsport 7 with an Skyreach 4 Mini R4 build that will be even more portable.
Here are the components so far:
MSI B450I GAMING PLUS AC
AMD Ryzen 5 2400G
Noctua NH-L9a-AM4
HyperX Fury 8GB (8GB x 1) DDR4 3466MHz
Samsung 970 EVO 500GB NVMe M.2
Samsung 860 EVO 1TB SSD
My uncertainty is regarding the power supply (I'd like to go brickless), custom cabling and power switch.
So here are my questions:
1. Power supply - What would you recommend for this build?
2. Custom cabling - Who do I contact that would know what I need in terms of lengths etc? NFC?
3. Is the power switch available from NFC the best option?
Thank you in advance for any advice.

 

[Solo]

This in tandem with this is what you want for an upgradeable brickless S4M. NFC sells the exact cables you'll need here.

There isn't a "best" power switch, but I'd order the one from him if you want it to fit perfectly without even having to think about it.

 

[LKS]

Thanks Solo I will contact Josh.