I have broken a lot of very expensive equipment so yes, very scary. Mach4 is not on the same level as LinuxCNC or other commercial motion planners.
I am hoping April will be the big month. To be fair to AvidCNC and to respect their forum, my progress is covered under build logs. It is looking like the dust manifold will be first and will be independent of the tool carousel. So if you want static posts it will be a minor install. I think I might even make it a state machine for those who don’t mind losing the top 12 inches off the work envelop. The last foot will trigger the dust manifold to open so you can do a tool change.