I'm very surprised the top answer isn't pocketbook. Their entire business model is reworking Chinese e ink tablets to make them GDPR compliant and privacy respecting. I'd recommend the pocketbook verse pro if you want a lit screen and USB C, but they have a cheaper model without those features.
Here is a good spec comparison table for ereaders in general. I'd point out basically all e-readers have great battery life.
You can have it so long as it is semiautomatic. There's just a lot of paperwork involved because the bolter itself and each individual round are probably considered destructive devices.