For the texture/pattern around the edges where the squares are cut off; I would either remove them or taper them down towards the edges, so they are less likely to catch and eventually pull away.
Otherwise, this is a very cool idea that I’d like to see updates on!
+1 for prusa if you want to spend more and get something that just works with no fuss, if you’re wanting to go cheap&cheerful an Ender 3 will be a good option as well if you don’t mind the occasional bit of tinkering for about half the price, as it’s probably one of the most supported printers by the community and newer ones come with Auto bed leveling and half of the fancy stuff you had to add on back in the day.
I’d spend any money saved building/buying an enclosure and something to run octoprint with (Raspberry pi or a spare android phone)