Hello Billy
I have not finished the plane yet but almost there. Yes the engine box requires construction and it is very simple. Followed the instructions and it went smooth. ZDZ have rear mounted carb, therefore I have to cut out fire wall to accommodate the carb. Throttle and choke linkages are to be worked out and they require quite of engineering.
As mentioned by another member (furloughed) tail area requires some work to make straight and perpendicular.
I will try to post pictures of the engine box and other stuff as soon I get hold of digital camera. Secondly, I tell you when I am done and how was the test flight.
Jamal