I'm sure I'm not the only one to lust over the ukdepartureboards.co.uk offerings, but I would never get that past Mrs Bob. I've found a low budget version, if you have some soldering skills. I've gotten the OLED display and ESP32, successfully programmed it and it works easily.
I'm waiting on my library to 3D print the case.
edit: total cost for me was less than $20 USD
Information is here: https://github.com/gadec-uk/departures-board
Here's a picture of mine:

I'm waiting on my library to 3D print the case.
edit: total cost for me was less than $20 USD
Information is here: https://github.com/gadec-uk/departures-board
Here's a picture of mine:
