My spindle/ATC are coming from CNCDepot.net. These folks have been selling an Avid kit for some time, and for even longer selling retrofit kits. Check out Clough42 on youtube.
Mine is the first 1F they are doing, and it is taking longer than estimated, but I would rather have it done right.
As TMToronto will tell you the ATC option is like the old boat joke. That being a boat is a hole in the water into which you dump cash.
I will double the cost of the Elite Foreman, but it will still be cheaper than an Avid or Shopsaber of equivilent configuration.
I will not be using a Pauk style bench as height would be an issue. With ISO 30 tool holders, I think deep drawers are in my future. I have Paulk style bench as my outfeed table for the table saw… and it is a good fit there (track saw usage)