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#41
1. Don't worry about the RF.
2. Use a motherboard tray, mounted squarely so the motherboard is not twisted.
3. Use what ever cooling you like but to be quiet use Noctua fans
4. Ground your mother board tray to the black ground wire from the power supply and to the power supply case. Everything else will use the motherboard ground when they are wired to it. (Plugged in) Anything that is plugged directly to the power supply will be grounded using the power supply ground.
5. No matter what you make the case out of the cooling, air circulation for cooling principles are the same. Selection of wood I would like birds eye maple for mine.