Novell Gateway for Exchange, installation and System Requirements

Our division is running Exchange 2003, our corporate office is running Groupwise 7. I want to install Novell gateway on our Exchange server, but the system requirements indicate that the following be installed on the Exchange server:

Novell Client
Groupwise Client
Console One

Out Exchange server is also a Domain Controller and I hesitate loading any of the above into it. I understand that Windows and Novell have a pretty low sandbox factor (they don't play well together). However, we would like to pass mail to and from each system and share our address lists. From what I understand, the newer gateway works much better than the old solutions.

Are the above apps entirely necessary for getting the gateway to work properly? Also, what can I expect from this solution? Anyone have practical experience with this connector?

Thanks.