HowlerKarma,

If you have documentation that supports the need for the accommodations you are requesting, it can't hurt to go ahead and start the process of getting them approved. Once you have SAT accommodations in place, you don't have to re-apply - they stay in place. So it isn't a bad idea to get the accommodations approved now anyway, even if it turns out that you can't get approved in time for the test that you want to take this year.