My main protagonist is going to fast-forward himself in time by 1000 years. He will simply reappear in the same place (marked by a small beacon), the process being instant for him (no hibernation etc). This is the only "magical" technology in the universe, known only by the protagonist.
However, he wants to prepare for a potential scenario where the Earth is rendered uninhabitable for whatever reason, and perform the time travel in a well-prepared, isolated place. He would like to stockpile any and all items required for him to survive, as he investigates the reality outside, or at the very worst, to allow him to live the rest of his natural life in the isolated area.
He will have access to a reasonable amount of funding (several millions of dollars) to let him buy a concrete bunker in a safe (at least in his time), remote area. However, he won't have access to unlimited resources like millions of scientists and engineers, or any technology not available in 2016.
After watching several scientific documents about experiments with food decay (performed by the brilliant researched by the name of Ashens), he knows (and so do I) that canned food or hermetically sealed chocolate simply won't do even for 50 let alone 1000 years.