Installing decoders in Rivarossi 5412 4-8-8-4 big boy up #4000

[DLO4923]

Good Afternoon,

Does anyone know of a company or individual that installs decoders in the loco identified above. Thanks

Dan

 

[blackz28]

Many people on this board will do it or Dcc trains does installs
first is this a DCC ready or an older open frame motor from the 60s
to the mid 80s ???
The way to tell is the motor is it in the cab or under
the boiler?