Thanks, Nate. I need a roof that is just 7 5/8" long for the single-truck trolley. Bobby Ogage (above) could probably use a longer one. My friend with the wood-working tools just had a loss in the family, so will do other stuff until I can plane and contour the wood roof. The one I am using is for a regular coach, but the clerestory is low like on the streetcars, so I think it will come out OK. Planing the bottom will also reduce the overall width. The MTH trolley that I am using as the basis is actually a little wider than it should be, so I don't have to actually get narrower than 2" or so. If it is still not narrow enough, I can saw the roof lengthwise and then glue, gill, and sand. I have done this before and it looks OK.
I am mostly nervous about shaping the ends. I will take the advice about a rough belt-sanded shape followed by hand sanding. The contour of the ends is considerably flatter than on steam coaches.
