Travel bookshelf

I'm getting ready to go live in a dorm for a semester, and one of the things I'd really like to be able to do is comfortably bring some of my more important books with me -- especially the ones likely to occupy the overlapping space between (a.) relevant to my coursework, (b.) unavailable at the university library, and (c.) unlikely to be easy to find at a bookstore or in ebook form. That includes some textbook-style comics, a handful of textbooks from particularly good classes, and lots of academic writing on science fiction and fantasy.

Unfortunately it seems like there are few if any really good options for how to travel with a bunch of books that you want accessible, but easily stored. Sure, I could pile them all up in a cardboard box, but then I can't just keep that box on hand and open it when I need something; I'd have to unpack it entirely if I need the book at the bottom.

What I'd really like to have is a bookcase box, but that doesn't seem to be a thing that actually, like, exists. I mean, there are historical examples, and DIY things on the internet, but nobody appears to actually make one.

I've started going over mental plans for how to build one when I get to Hampshire, but that's  a second-semester solution at best. That said, if the facilities there are accessible to me in a way that will allow me to make this sort of thing, I'll probably be redesigning my dorm storage over and over again throughout my time at the school.