These are things that have been modified:

Side plan view of the fuselage.
Fuselage is narrower by 1". Might need more.
Vertical stab leading edge angle changed.
Will use side mounted engine.
Nose side farings were removed.
Nose and main retract gear installed.
Wing lowered to the bottom of the fuselage.
Angle of the bottom part of the rudder changed.
Lower part of the fuselage ahead of the rudder bottom changed.
Area behind the spinner was change to mold into the spinner shape.
The air intake at the front of the fuselage was moved back.
All the moment arms remain the same.
Wings and horizontal stab remain the same and stab anhedral added.
All of the contraction techniques would remain the same excluding the removable front top of the fuselage that would be fiber glassed directly over the foam because of the complex curves.

To be continued…