As I don’t find them in the list, I found the notebooks from Schenker/XMG very suitable!
SCHENKER Laptops & Desktops - individual like you and XMG | The fastest gaming laptops & desktop PCs.
One can at least tweak some components as they have some kind of modular concept. Moreover, are their notebooks manufactured in Germany and their service is great too!
In my experience they work very well with Qubes OS!
First of all does it perfectly support its hardware requirements so that if you follow the standard installation procedure everything usually works out-of-the-box even “suspend” and every single 4.1 release candidate ran through without any issue at all. 
BIOS settings for Intel ME are also great as they allow to easily import xen and grub efi’s - if one want to trust Intel ME to secure your boot chain of cause… 