Not knowing all of the specifics, I think your plan is good. Planning to have a plan is always a great start! Your plan will probably change a lot, but that's ok. I know that the rules about studying abroad change all the time, and unfortunately are getting more and more strict.
However, if you work hard, get into the school you like, and get amazing grades, that will put you at the head of the line to study abroad. And if you can't study abroad, who cares? You will have gotten a great education that will allow you to do something else which will possibly be even more amazing, and you will have some good savings set aside for when you need it.
Never underestimate Community College. I had a great experience at mine. I think that you can learn as much as you want at any university. The profs. at Community Colleges are usually very down to earth which means they have lots of time to talk to students. If you want to do a special, in depth project, you can find someone who will help you do that and you'll wind up with a world class education. If you talk to them all, you are bound to find one who studied abroad, and perhaps she will be willing to be a mentor to you, and help you achieve your goal.
Good luck!