This is just a heads up, and I am probably late to the game, but for silent PC builds I noticed that Rebeltech is back and stocking both Noctua and Be Quiet! products.
https://www.rebeltech.co.za/brand/be-quiethttps://www.rebeltech.co.za/brand/noctua
https://www.rebeltech.co.za/brand/be-quiethttps://www.rebeltech.co.za/brand/noctua