Amusing. It is not difficult to “stay off the radar”, as long as you are intelligent, technically erudite and determined. I certainly would not recommend relying the “expertise” of most private investigators. Most are barely a step above Luddites. Better relying on genuine nerds. You need to cut ALL ties - it is where most come undone. No links to credit cards, bank accounts, medical records, social media accounts, family or friends. Not difficult to do, but not easy for some to sustain. I’ve been involved in some disappearances and subsequent locations. Most slipped up in one of the areas I mentioned.