DSI PRO question.

Has anyone found or made an adapter for the Meade DSI PRO that allows you to remove the filter holder? I am using this DSI PRO for autoguiding, so don't need filters. When you take off the sliding filter holder, there are only the four (tapped) holes in the face of the camera and no T-thread or other option. I prefer to just remove it an have one less thing to think about in the path. Any ideas or known solutions?

Thanks,
Charlie

http://www.scopestuff.com/ss_dsif.htm
This is the only one that I know of at this time.