You'll get lots of replies on this one. But I'll chip in and say that I think it would be most appropriate for you to wear your collar with a black jacket. As a member of the clergy to switch to a bow tie or tie would seem just not right to me. I probably would not wear the black hose - I did to my mother's memorial service and when I look at the pictures it seems a bit much. But you have plenty of time to get it right.