we recently changed the tr blades to the new design with a swept back tip.
This would appear to be the Van Horn t/r blade.
I can't think of why the dynamic components can't be used between the Bell/Agusta-Bell aircraft. There are slight differences in the airframe, so one has to be particular with the serial number break down in the IPC for ordering airframe items. The running gear should be interchangeable, within the parameters of JetRanger 2 and JetRanger 3.
The breakdown only differs by s/n of the aircraft.
Perhaps the rules different in Europe than North America.