Mike,
I built a trio of those this past winter. Very pleased with the results.
I would suggest a change from the instructions if you haven't got there already.
The instruction call for drilling the carbody adjacent to the ladder stiles for insertion of grabs for the ladder rungs. I did not like the end result of that method, so I simply cut .012 brass wire to the correct length and laid them into the slight groove in the stile side. Very effective I thought and better looking.
Today on the bench is a quartet of Sunshine rebuilds acquired last year in Naperville.
Pierre Oliver