I could really use the help to figure out what kind of smoke generator I need to have for my ho bachmann southern pacific daylight steam locomotive #4446 thanks so much

my label # on the box is a 50202 and train # is 4446 does not come with sound nor a steam generator need to figure out which smoke generator to get and what specific decoder and speaker to get any thoughts and or suggestions
thanks
Bob

yes i need  to know what is included in the ho southern pacific daylight steam locomotive and or what i need to do or get in order to get the chugging sound whistle and steam smoke to work or what kind of sound decoder and speaker do i need for this steam train
If I can get some tips or advice on what to get and where and how much I'd be greatly appreciated to get some help.
Thanks so much
Bob