CRUISE CONTROL

I finally have a solution, but it is expensive. The local Ford dealership says it is my servo motor. They want almost $900 for parts and labor. That seems like a lot to get cruise control working. Anyone know where to buy the right module? I have spent the last couple of hours looking for a 2002 Ford/Fleetwood Jamboree 31W cruise control servo. I have tried every combination of words I could think of. There are servo's out there, but I don't know exactly what part number I need or what it looks like. I need a friend that works at Ford.