Nah, I doubt you'd be welcomed badly. Or if it did happen, then you should congratulate yourself for identifying ahead of time a group of fools (to avoid worse terms).
If anything, going there as you currently are now would be helpful. If you "dress up" and "crossdress" especially for meetings while not really changing your own life, yeah, you might be offering yourself mental relief, but you're skipping the whole therapy part by not going as really you. Because who you are right now is not limited to who you are inside, or who you want to be. If so, life would be very easy.
Personally, I make a point of not going "special" for any specific occasion, even though the temptation is there to impress the endo and have him finally give me a decent dose of hormones, logical reasoning or not... Because even if it's momentarily being closer to the dream me, I know it's not "me" not to be "me" (the present me) all the time. It just feels more honest and unless you have the extreme bad luck of being around super bigots, it's much smoother and easier. Though to be fair it does make the step of buying clothes and getting a haircut a tad more stressful. (Currently bathing in this very stress.)
Finally, most people saying their chances of actually transitioning are very low are mistaken in saying so. Just saying~