Jessica, I can understand that. I went to Radfem101 and (oddly) there was no protest at all. Don't know why. I was all psyched up to walk past the protestors and I didn't need to worry!
Obviously that can't be guaranteed this time. But I would think that the organisers have paid close attention to the experience of running previous meetings (WPUK didn't run that one in Bristol but as it was all filmed they'll have seen it) and will have good security.
I don't know if it would help given you don't know me from Adam but I'd be happy to meet you and go together. (Just got my ticket! Put it on my calendar and realised I have a very early start the next day. Oh well. I'll cope.)