Gents,

To duplicate the canopy I use a picture of the fuselage of Duane, in the past this picture is made by Noblechuck.

An old Top Flite canopy probably also used on the fuselage in the crate. (Maybe the same canopy?)
The result we will see in the future when comparing the pictures.
With our modern computer systems it is easy to compare the shape of the plug and the canopy on the picture, using the program "Paint".
Simple laying the plug picture on the original of Noblechuck.

I can stretch the plug picture vertical and horizontal to see what to do to get the right dimensions.
The red line in the plug picture is the top of the fuselage.

I show you both pictures separate in one display.

Cees