While it would be great to talk to some like minded dudes and/or ladies that are supportive, I'd be hesitant to go to such a thing because:
1 I believe there would be non-acceptance to differing levels of "commitment" to crossdressing. I don't wear makeup, don't tuck, etc, which means...something? I sometimes underdress, some think that's stupid. I don't try to pass, some think that's not taking it seriously. I often don't wear age appropriate clothing. And so on.
2 I have absolutely no doubt that politics would come up and I'd not only be in the minority but openly attacked.
3 The first time someone referred to me as "her" or called me ma'am, or one of the ladies, I'd be tempted to lift my skirt and prove them wrong, which would probably break some sort of protocol.

So no, I probably won't go.