Interesting vid. The ISJA's homepage is right here
. Looks like a sound place to get some competitive experience before going to full-blown MMA.
Another style that you may be able to find that hasn't been mentioned is San Shou. If you can find a big enough Kickboxing ot Muay Thai gym, they may have San Shou there also. There are also countless other systems and styles that you could look into (including a handful of Indonesian/Silat styles or Fillipino Hagibis), but I doubt you'll be able to find a credible place to teach those styles.
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... As long as I don't bore you and I spark a moment of thought, my goal is achieved
Queng leon queng tigre ecu tacacut, queca pa? - Pampangan Mandarigma Motto