American Flyer 312 Engine and Tender Serviced Link Coupler

American Flyer PRR 312 Engine and Tender. I had this unit gone over, oiled and serviced two years ago and it has been in storage since then. Not perfect there are scuffs and it is a bit dusty. Link Couplers. The smokebox door will not stay latched. Not sure if anything is missing. Take a look at the pictures and judge for yourself.