Batboard

Anyone know which of the three are compatible and interchangeable with each other?

Troy, Havis, Jotto

Troy and Jotto are generally interchangeable. Havis does their own thing.

That said, if you're clever and patient you can make anything work with anything.

The Havis face plates are just a tiny smigin wider than the Troys such that they would not fit.
I had to use a grinder to correct that. The Troys however work fine in the Havis consoles but
the finish on them does not exactly match making it look a little out of place.