I have not checked the single components, but in general this looks like a solid industrial setup.
Some notes:
- I would go directly for an IPC, as you get more processing power there and also a x86 architecture and not arm
- Bluetooth might be tricky then for the IPC
- for what do you need the OPC UA server? And what software are you planning to use it for? I would probably model it that all the data first goes into the UNS (MQTT + Kafka), and then in top of that you build the OPC-UA server to give potentially data back to the shop floor