[II2II]

Look for a second hand device then? I don't know what the situation is like for Remarkable, but Kobo has been around for over a decade and used ones are floating around the second hand market. (The Kobo Touch was introduced over a decade ago and is hackable.) If you're willing to scavange just the screen, there are even more options since you don't have to worry about the device itself being locked down. The drawback with scavenging screens is you have to figure out how to interface to the screen, which is quite the barrier to entry.