Charlie,
Are you sure about your Churchill and El Granda (sp?) comments? The El Grande is a Berea kit, and they introduced the Churchill as a somewhat retro kit. I do not see an El Granda (sp?) on the Rockler site. BTW, the Churchill and El Grande use the same bushings, which is nice.
You are right that ArizonaSilhouette.com is the only place to get the Baron. It is a Berea kit, and BB has exclusive rights to sell it as the Baron. I have no experience with the Navigator, but have heard that it is the same kit.