I was looking into going too. I am not far along either and had the same concerns about being alone !
I noticed that they have a big sister program where it appears you can get the comfort and introductions you need to get going.
And if you think about it; most others will be near the begining like us anyway, because fewer trans women will want to go if they are already transitioned. ( just a guess if course) but i am hoping to attend at least a small portion of it if possible. They way I see it, life as a trans has bigger challenges other than walking into a room of people who understand what you are going through!! And have ALL had to START and /or question transition just like yourself. Believe me because I'm one of them.