Kcir_R,
I have also been interested in the set back plate that Ranger is installing. I did a little research and here is what I have found. Ranger recommends a 3″ Slide Master manual plate.
From the manufacture (R & R Design, Inc. 972-524-1789) the cost is $290 plus shipping.
I would also like to hear from someone that has one and is it worth the cost & effort.
Good Luck,
walleyejohn