yes "Mr_David" the cost of a "carrier" mount WAS too much,considering that this is merely a half bath that is for MY convenience mostly. (it will be located in my workshop with easy access from the family room located on the lower level)The ABS spigot O.D. is a little different than the cast iron. use a mission or Proflex banded coupling Not a no-hub coupling.
Rear discharge toilet that sits on the floor or wall mounted?
I had presumed you where installing a wall mounted toilet which requires a carrier. carrier price too much for you? So you're thinking maybe going back to floor mounted which requires a 4" CL of flange on wall?
Good luck with your project.
thanks to everyone for all the help!