Oven building class

There maybe an opertunity to have a WFO building class in Michigan in a rural area near Ann Arbor. Looking at June of 2012.  A historic Farm Museum is looking to replace their oven with somthing a little more updated but rustic this would be a 32x36 build. I'm sending out feelers to see if there is an interset. cost would be 400-450 for three days of building. Any funds left over would go to the historical group. This class would be lead by a profession WFO builder. please let me know of the level of interst, this will help in deciding if we can go further with this project in this direction. Thanks