I forgot to attach the modified drawing.
I set up a basic layout arrangement. The viewport layer is now set to non-printing. The viewport is set to 1" = 1'-0" scale. I will leave it to you to check that it is locked to prevent zooming and panning by mistake. Always make sure DIMASSOCIATE = 2 so that you can dimension in the paperspace layout without having to change dimscales and other settings.