Wow, Ghot, thanks! You found them both, monitor and mount

And choosing no frills items, they total only 60% to 70% of what an all-in-one with comparable technical specs would cost. Wonder what I am missing here?
The labor of someone else combining the parts.
Also, on the monitors... The IPS and VA screens will have a better image, but will cost more.
As for the monitor arms, look at things like range of motion and what weight they can support.
Like here's a nice 27", IPS, 144Hz, with speakers... weighs 14lbs.
BenQ EX2780Q 27.0" 2560 x 1440 144 Hz Monitor (EX2780Q)
pcpartpicker.com
And this wall mount will handle it...
And ofc, Ergotron are the Cadillacs of wall mounts... but they ain't cheap. ^^
Enhance any viewing experience with an Ergotron monitor mount. With unparalleled adjustment capability, it can free your workspace and enhance productivity!
www.ergotron.com
Like this bad boy...
Find your best view, save desk space and discover your most productive self, thanks to this LX Arm. Place your screen where you need it for each project, and then reclaim a space full of opportunities by folding the arm and pushing it aside during a much-needed screen break.
www.ergotron.com
It really all depends on your budget. Like anything else.
Or you could go crazy... (but these don't come with speakers)
Shop Dell’s high-quality computer accessories like keyboards, mice, webcams, batteries and more. Enjoy great deals and build your ideal PC setup for home or business.
www.dell.com
But you'd need a heftier wall mount for this 32 lb. bad boy... (definitely want to screw this into a wall stud)
Choose a monitor arm that’s as adaptable as you. With the HX Wall Monitor Arm, you can reposition large monitors weighing up to 42 lbs (19.1 kg) while still enhancing your workspace with a sleek design.
www.ergotron.com
And for some decent speakers... (get the ones with the bamboo finish)
You won’t hear any enhanced super-mega-hyper-monster boomy bass from these powered speakers. The low end from the A5+ Powered Speakers is real bass, very near to the originally-recorded music. From rap to classical to movies, you’ll get tight, punchy bass with an awesome growl that will make you...
audioengineusa.com
Might need a bit more than a NUC for this stuff.
