I have an atearn genisis USRA light 2-8-2.  Recently I had DDC and sound professionally installed.  When I got it back, I decided to dissasemble it to lubricate the gears.  Stupidly, when I removed the screws holding the boiler weight, I didn't label the screws to replace them correctly.   The weight also includes the upper gear box.  I have the original instruction sheet from Athearn, but it isn't clear as to what goes where.  Test fitting the variousscrews and nuts don't seem to match.

Does anyone have more info on this?