I’ve done a couple different things depending on how much effort I wanted to put in to cleaning off top of pilot beam. And in working on adding pilot decks I discovered the smokebox to pilot braces distort the forward frame by pushing it down a bit, but, hey, it’s Bachmann, what does one expect.
(You should see the HO 0-6-0 I got in November, sheesh)
Also, am pretty sure smooth steel was employed before treadplate. When wanting treadplate I’ve used Plastruct’s treadplate sheet labeled 1/48 scale as 1/24 seemed far too large. Since it is .020 thick I lmainated it to plain sheet styrene of .015 or .020, I forget.
Also useful is hinged apron between cab and tender.
Something else which can be done is make the tender coupler cut lever actually work; even while taking train set curves.
Bell rope and whistle pull can be added.
Rain gutters/drip strips and window awnings can be added.
IMG_4249 by Forrest Wood, on Flickr
IMG_5285 by Forrest Wood, on Flickr
IMG_5284 by Forrest Wood, on Flickr
IMG_5286 by Forrest Wood, on Flickr