i have tender with high coal load in front. can't find any screws on underneath. how does shell come off

i asked in general was told should ask in n scale.. i got an 4-6-0 dcc and sound  which wheel rods are beyond repair.  question is in i buy new 4-6-0 dcc equipped  can i switch my tender so i have sound and dcc. in new engine. 

i have a nscale  dcc and sound 4-6-0 baldwin.  my grand kid dropped it and messed up the bars on wheels.   not looking to fix.  asking if i buy new baldwin that dcc equipped .is everything  for dcc in tender.  and if so can i just switch tenders to make new one dcc w/ sound  thank in advance if more info needed post i try and reply

i have a backman dc control that came with alaska set .  im looking to use a dccw/ sound loco .  is this control the pulse one ?  what would i need to do this without having to get all new stuff

this is to bachmann guy only  when if ever are you going to have traction tires in stock for both  small wheel and big wheel been coming to this sit for 2 years now allways out of stock. you make a good product for the money but its not funn having youe engines on the sidelines because of traction tire problem.

right now i havee 3 main lines all analog controllers.  2 locos have.dcc.i not lookin to run more than 1 train on each linee  heres my question   i want sound . what do i need to get.  locos? controllers?  anything else.