Patrick — I have a Forrest 6” stack with 30mm arbor + PINS if you are still looking. I moved to the Felder dado cutters, so I don’t need the Forrest...
My philosophy (ok, my wife has a major say here too) is to put most of the “wood” into furniture pieces that we can take with us, and items that are...
This is my favorite approach as well when using plywood. If you end up with a rabbet that is a little too tight, you can often rerun across the dado...