I have been planning on scratch building the Casa Grande speeder shed and putting it on my Pacific Electric layout, in the correct Southern Pacific Colonial Yellow, instead of Pacific Electric gray. I drew up a scale plan on 1/4″ square graph paper using Grandt Line #8008 windows. While they are not correct, they are not too far off. They are smaller than the 4×6 prototype windows, and they have more than the prototype 8 panes. It is 18×22, the sides, back and roof is metal, and the front is metal and wood.
Hey John, Great start. Could you use some of these: They measure 2-1/2 scale feet wide X 6' tall. (I think that is close to what your photo shows) I have them -- if you are interested, PM me your address and they will be sent. Wolf