As SimHub is an UWP-App it might be possible to run on an Raspberry Pi II with Windows IoT core?
Put thison thissurrounded by 4 of thesewhich are controlled by thiswhich is connected to one of the USB-Ports from the RasPi.
Just a crazy thought ...
I've not yet tested RPI browser capacities over simhub, I have one lying around, will try to see the limits