Baja --- looking for a local travel company

Am looking for a company that can arrange a land tour in Baja to visit the missions, small towns and archeological sites. I know Wilderness Travel and Audley can, but their prices are usually way high. I'd to find a company located in Baja that can help put together a 6 to 10 day itinerary, and provide a car/driver and a guide. I will be finishing a whale watching trip in Loreto in mid-January, so would like to start the overland trip there, then wind my way down thru Baja Sur to Cabo, and fly home from there. If anyone has any leads, I would love to hear them. Thanks so much!