I bought that 11.6" screen for $159 (
https://www.amazon.com/gp/product/B07FKJ6WP1?tag=hawk-future-20&ascsubtag=UUwpUvbUpU3758501). It required an HDMI and USB connection, but then Windows immediately recognized the screen. I did need to run the Control Panel applet to tell Windows which monitor supported pen and touch, but that was it. Needing 2 cables is not ideal, but they are included in the box (but short, I think I'll order longer ones) and plug-in right next to each other, so with the included cable ties, they sort of function as one big cable.
I now have a touch and pen supporting small monitor connected to my desktop computer. I use this is the 3rd monitor. I can drag windows over to it when I want to draw, sign a document, or just use touch for control. I even tried playing Minecraft on that screen -- worked perfectly and automatically in Minecraft's touchscreen mode (no setting needed, Minecraft just supports touchscreen and mouse/keyboard and controller control all in parallel).
For pen support, it worked with the active stylus that came with my HP Spectre x360 and also the one from daughter's Asus and even other old Windows 7/8 era active pens I tested. I think they're all Wacom-based.
Sadly, I think this may be a limited run as the seller has a stock of panels originally intended for a Sony Vaio, but with that line shut down, they are probably selling off the parts as they can (hence the low price). Maybe once they're out, that's it. I'd also like to be able to get a larger screen, maybe 15" - 17" and would prefer a single USB-C connection, but given the only other option is the $1,800 Dell Canvas, I think this is a great solution.