Atlas GP-40's

[binder5295@a...]

Fairly new to list, but an old CB&Q fan. The Atlas GP-40's may have 
been covered before, but here goes. I finally got mine out and 
started detailing. Moved headlight to nose, moved horns to radiator 
area, added radio antenna, cab sunshades, and speed recorder drive. 
What other features do I need to add/change to do one 600-series and 
one 170-series uniits? Thanks in advance.
Gary Binder