I see no modification in this post that would warrant the work involved. If you really want to look like Rambo go to Millets and spend 10 quid on a "Survival" knife. ...as for me, I think I'll stick with what I've got.
Surreptitiously trying to bring one of these (or any other knives) onto a plane is asking for all sort of unpleasant reactions, and the person who does deserves what they get. Besides, If the idea is to have your knife with you when the plane crashes, how many people survive falling from 30000ft long enough to need it?
Wasn't there a knife nut in lost? - obviously started (though not continued)a train of thought. Not my cup of tea that knife, and I would have no problems watching someone with it on a plane be dealt with by a sky marshall.