Just beautiful work performed on this bird, you chose great bases starter for your project.
I like IDF livery also, i would like to do one of my birds in same or similar livery as yours in future.
I didn't knew Cermark F16s could be converted into turbine powered models!, not bad at all, just great indeed. What did you use to draw your panel lines, pastels or pencil?.

Keep it up, but one thing is for sure, cockpit interior details do bring scale models to higher level of detail and class!. I am thinking on doing scale cockpit in my Arrow also, it will be all scratch built if i decided to go to that extreme with it.

Cheers,
Sam