I have a 2-8-0 that I got that was inoperable.  Finally got it running-ish but have a few questions. Keep in mind that I just want this as a runner for my 6 year old to actually play with, not something I want as a show piece.

1. The drive gear linkage is all messed up.  Anyone have a diagram?  It does run and pull now,  just doesn't look like much of a stream engine.

2. Smoke unit (see photos) - does it appear to be set up right and how do you use it?

3. There is a copper piece attached with the lead truck (lead truck is actually missing) that makes contact with the body.   Purpose?  I don't see how it draws current from the truck since it is plastic.

4. Are parts readily available from Bachmann?  What year would I be looking at on this unit?

Thank You