Hi guys,
I just wanted to give you an update and thank you for your advice as it really paid off.
I simultaneously contacted the IBO and OUP and after a few email it looks like we are very close to a deal
OUP want a study guide, I don't want to say too much in case it all falls through but basically I would co-write it from some of the IBO people I contacted. That means I won't write the whole thing on my own, which is ideal for a first time, and that the book will get the full backing of the IBO, adding their distribution channels to the excellent OUP ones. Miles better than the self-publishing route I was considering!
I'll keep you posted when it's all a bit firmer!
Nancy
<Added>By the way I teach both the Alevel and the IB and I agree that the IB is not for everyone. However, I do prefer the IB for many reasons, and find it much less prescriptive, at least in Philosophy.