My first completed (and satisfying) kitbash was made with a F-5 E Airfix kit 1/72 scale. It was a learning process, but the result still amazed me since I only used what parts was in the box.
I've got a dozen Viper-like Kitbashes to show you... Stay tune.
That part wasn't a fun part, I actually changed my mind 2 times, even choosed an all blue, gloss, color... Then make up my mind for a light grey-ish color... The blue strips are from a 1/144 scale russian fighter, a Mig or something... The weathering do the trick too.