[GOOD NEWS]   I successfuly hang BS dummy mass with four tungsten wires of 100 micron.

[BAD NEWS]    Dumping mass of the intermediate mass is missing.

Together with this mass, strong magnets and two hanging rods are needed.

[21 Nov.] I found these at bottom of rack for absorption measurement system.

Another missing parts are base plates to sit 10 cm diameter masses for hanging JIG.

I recommend to keep whole parts in one container box.