The things I said are all easy within the scope of your original request…, and don’t need any extra hardware other than a $5 display if you choose.
If you happened to be nearby in Australia, I’d be happy to ‘buddy’ you through this. Otherwise, we can chat as you need ideas or questions addressed.
There are quite a few good helpers on here - we all see the same ‘sphere’ from different angles, so the approaches can be wildly different… but as long as the ball bounces - right ! 