We bought the triloc and MSP3140 from M&R they will be arriving this week, meanwhile I have no notches in my front screen hangers for the palette attachment. Can someone provide me with an exact measurement from the center of the attachment to the first edge of the stop block then the actual width of the stop vlock. I want to get started on cutting these hangers before the equipment arrives. Attached below is a graphic of what I need. TIA