I arrived home and compare my design with reference drawing I use as below.
Don, I think E3 diffrent with E4 or E7 at canopy what E3 use an old style canopy like picture below.
I design a new canopy for E4 already. Will release after E3. And 1/48 is a good scale, you can reduce to 1/72 or 1/100 or 1/144 easily. You can also print to 1/32 if you have a paper what big enough.