I bought the Holley pan partly because it frustrated me that Milodon listed all the parts separate and in the end cost more. I can understand listing parts separate like maybe the windage tray, but the gasket and pickup at least should be part of the kit. Add that I read several complaints about weld leaks and such.
That said, I do like the pro-touring pan option Milodon has. No idea how the Holley pan works for autocrossing, but I don't remember complaints so maybe it is a fix for something that isn't broken.
The one unknown for me is if the sump location on the Holley pan has issues with the centerlink when the motor is in the stock location.
@Dantra did a 6.4 into his Dart with the Holley pan and his motor is like 5/8" forward and I don't remember him having issues. But since the pan was designed by Holley and they move the motor forward, they might not have left room for the centerlink if the motor is back from their location.
I am hopefully only days away from dropping a mockup motor into my '73 so maybe I will have a better answer at that point.