Hi, hope your doing ok! Your situation sounds quite specific so i can't give much advice but i also have CIN2 which went into the glandular area (CGIN). Just been for my LLETZ and they removed quite a deep area with it. I asked what would happen if it wasn't successful, and dr said they would do another LLETZ, they would do up to 3 before considering another treatment. I think this is the preferred method of treatment now days. My fertility is very important to me too, and I think the LLETZ is the best option to try and preserve the cervix.
When you go and see your 2nd consultant write down a list of questions and the answers so you don't come out and wish you has asked more xx