Wow thanks very much Tapas. That's a lot of informative information.
I do have Mobile Sheets Pro, and I'm running it on an older Samsung Pro Chromebook, but Bluetooth and updates are outdated on that device and need to find another solution, possibly something similar to your set up.
I'm thinking of either a dual monitoring from a PC and using a page turner (air turn) to display and turn pages with Mobile Sheets Pro. Or a used Microsoft Surface Pro. (Not an Apple fan, but...)

You gave lots of NICE options, and we appreciate that.