I know little about the industry, but here's my opinion for what its worth: I think profitability lies in the customer demographics. You have to move more upmarket than the average honda or s chassis TR troll. I'm not referring to lux, but rather to race. Get together with some experienced racers and builders, put together a competitive shop race car for promotion. Get involved in publicity events like the $2009 challenge. Have the knowledge of the specific classes and rules and be able to build cars toward that end for customers. Race customers have money and will pay to be competitive.