He is an active JW and I am a practising Church of England person. ... I've agreed to do a Bible Study with an open mind, but I just wish we could be together as we are, with compromises on both sides.
Has he agreed to attend Church of England services with you? Is he studying C.O.E. teachings, and open-minded about your beliefs? Are you aware of just how contemptuously the Watchtower speaks of all other religions? A one sided "compromise" is really no better than surrender.
Some do manage to survive, even thrive in a mixed Watchtower-Christian marriage, but it is a very difficult path to follow. Having been there myself, done that, and yes, paid the lawyer when things fell apart, I urge you to consider the situation most carefully.