I like where it is going and will love to see the results. I keep eyeing these on Ebay but everyone tells me to steer clear. Glad you took the plunge. I will be very curious about how this comes out. One suggestion is a Kevin Strong trick of taking aluminum tape “real duct tape” and applying it to the cab roof in a layered effect to make it look like tin and then a painting it black.
Since your going with a wood cab look this is appropriate. The side rods look great I wouldn’t change them. For some detailing ideas take a look at the plumbing that I did on my build
http://www.largescalecentral.com/albums/2-6-0-build/12198
all of it was made by hand with common bits of wire, metal rod, and styrene. I think it could really dress it up.