It is fairly easy to do the two types of prototypes. (they were basically Sabre aircraft with some changes)
the operational FJ-2 is a little harder, though.
the easiest way is to do the FJ-2 in 1/72 scale, using a Hobbycraft F-86E kit and a Falcon conversion set.
Here is a discussion we had on Tommy's Naval blog in the comments section.
tailspintopics.blogspot.com/.../north-american-fj-3-redux.html
please keep in mind that the blog entry is more about the FJ-3, but, his links show what it takes to do the operational FJ-2 also.
Rex, the Accidental CAG