I have a cabinet that is 12.3" wide inside, but it has a face frame, so the opening is only 11.25" wide. Drawings show the overall width to be 12.3" and the rail can be behind the frame and against the sides, as long as the sliding out portion is 11.25" or less. I really would like to use this pull-out unit because with the adjustable depth, I can fit 2 smaller trash bins. Will this work?