Guys
I will try to explain without pictures. I cut the smoke stack end off two roofs, right at the first window edge. now rip the two roofs in half
down the middle. Now with two roof halves, determine your length, cut and glue. Now do the same for the other side. Determine how
much you need to add the get the width that you need. Go back to the two ends you cut off and cut the width out of the CENTER of them
and add these between the two halves. Glue these in and add styrene to fill the gap in the center.
I will try to add pictures soon
Rodney