I am looking for someone to design up to 3 levels for my new project that is still in the prototyping stage.  The levels need to be similar to current car racing games.  I'm looking for a long (>10km) loop course that will continuously follow a road.  I'm flexible on the environment.  I could be mountains, canyons, beach, etc.  The format I would like would be in a bmp heightmap with a master texture on it.  I would also like some simple objects that can be used to spice up the environment such as guard rails, trees, cones.  They don't need to be fancy, just something to add life to the flat terrain.

Since I am in the prototyping stage, the quality does not need to be of commercial release quality.  I'm looking for quality that is good enough to demonstrate proof-of-concept.  Please send examples of your work, estimated cost, and questions to pwierzbi (at) umich (dot) edu.