How to find weight of Bowl & Scroll Rotating Assembly for transport and lifting

How to find weight of Bowl & Scroll Rotating Assembly for transport and lifting

The weights per model are:

DR800
-          Complete rotor (bowl, screw)= 4315kg
-          Complete rotor, front support and rear support = 4895kg (4315kg, 290kg, 290kg)
-          Complete rotor, front support and rear support, gearbox = 5555kg (4315kg, 290kg, 290kg, 660kg)

DR500 
-      Bowl: 1370kg 
-      Scroll: 450 kg  
-      Gearbox: 150kg?
      Rotating Assembly:  1820  with gearbox:  2000kg?


DR400 
-      Bowl and Scroll: 850 - 900 Kg