Have a CNC routher that uses the Porter Cable 78125 considering 2.2kw spindle and controller do you have any mounts and our recommenadtions?

You are making the right choice. The overall cost benefit of a spindle over a router is worth the change. We used a router back in 2008-2012 and constantly replaced it due to the daily use, but we are still using the same spindle we began using back in 2012. We sell a mount that you can find here: https://www.buildyourcnc.com/item/spindle-inverter-2!2kw-spindle-80mm-mount The mount fits standard 80mm spindles.