I have twins but they're only 2 so I couldn't help with advice on schooling them. I'm a member of TAMBA, though, and I understand they are trying to change rules about the rights of twins in schools. I don't know all the details but some schools have policies which always put the twins in separate classes and sometimes you can't put twins in the same school at all. I'm sure there is more information on the website, you should check it out.
As far as freakshows go, yes, plan on it. It's hard enough being inconspicuous with multiples but when you add the accent, it's a lost cause. Just today I realised how incapable I am of blending in when I took my kids out to the park in their wagon. From the comments and looks I got from nearly every person there, I guess wagons are not that common! Who knew?!