Is this woodworking project salvageable?

We had the fantastic idea of building a bookshelf out of rough lumber because it would be less expensive and would be really strong. Unfortunately, we didn’t think about the fact that rough lumber does not line up well at all. Even though we got the straightest boards we could find, they are all slightly warped, which causes the legs to bow in and out at odd angles. When we put a shelf on top of the bottom level, the legs stick out on both sides, while the next set of legs are angled in. The only power tools we have to work with are a drill, orbital sander, and circular saw. Buying more tools isn’t really an option right now. We are much more interested in functionality than beauty at this point, so is there anything we can do to save this project and end up with a working bookshelf? I have linked pictures below.

original idea
current disaster 1
current disaster 2
current disaster 3