Start with the first Milano: https://brickset.com/sets/76021-1/The-Milano-Spaceship-Rescue
Sprinkle in some of the second: https://brickset.com/sets/76081-1/The-Milano-vs-The-Abilisk
Completely redesign the nose, detail the interior and exterior, and give it some custom decals. Now I have what I like to call a swooshable scale Milano for my little Star-Lord.