Welcome back Guy,
I was looking at the datafile the other day and thought how nice the prototype looked, now I get to see you build it!
A couple of other differences from looking in the datafile (more photos there): The pilot's cockpit opening is bigger on the right hand side, with no door, left side looks the same as the production machines. Oddly, the shape of it looks more rounded in the first (earlier) pic you posted.
Also the top wing cutout is a lot smaller than either of the kit options.
Looking forward to seeing this one come together.
Merry Christmas
Tom