Well this is my thought on the whole thing. If someone wants to steal your truck bad enough it is history. All of the things mentioned will help to deter the thiefs but wont stop them. Spend the money on a good insurance policy. Document all of the things that you have done to your truck to validate its value. Then enjoy your truck. Now this is easy for me to say because I am not going to have a truck that will have 50,000 dollars wrapped up into it. My truck will be a daily driver no Trailer Queens allowed here!
Please don't get me wrong I have nothing against protecting your truck but I am not going to go to extremes to protect it. Just useing some common sense will keep you from spending too much time worrying about your truck and more time enjoying it.