Why don’t just buy a 15" touch screen and a android stick or box to run hassio apk call it a day. Probably even cheaper than show 15. You can find 15" touch screen around $130 to $200 at eBay or ailexpress , $20 to $40 for a android box/stick run on android 10 os.
It would be better to run Home Assistamt on another machine and just display the frontend on the touchscreen. An Android box/stick is not officially supported to run Hone Assistant and you’ll also reach a hardware limitation pretty fast.
FWIW: the term hassio has been deprecated for more than a year now and the term hassio was used for the full Home Assistant package now called Home Assistant OS. So your post was misleading.