I set up the same thing a few months ago with Flash, seemed to work fine. I didn't test more than a few receipts though (concluded that my spending wasn't a problem, I just needed to make more money lol), so can't vouch for the reliability at scale. But it handled really wrinkled, faded old receipts quite well.
I'd wager gemini flash could get decent results. Id be willing to try on 100 receipts and report cost