I know you wanted wired, but a point to point wireless link might be a good fit. https://store.ui.com/us/en/products/ubb
I have a variety of Ubiquiti point-to-point setups out in the field-- AirFiber down to Nanostations. It's good gear, for sure.
For this particular application I'm concerned about being in an RF-hostile environment and unreliability, as compared to wired.