Sounds like you've got a good plot worked out there. It sounds pretty fast-paced and exciting, with potential to be a great read. I would certainly give it a go.
However, I think with 'Teleportation,' 'time travel,' etc, it would be more realistic to move it further into the future? 2030? 2050? 2014 is really only 4/5 years away, and I don't think we're going to have gotten over the depression, let alone worked out time travel! Also... mexican samurai? I think samurai are too japanese - make up your own elite military sect!