at a competitive price point with adequate supply don't expect to get rich and everything should be fine. If they think the product is that unique, patent it...other manufacturees do. The Z32 market isn't getting any bigger so they should count on a sales explosion...recoup costs and make a little money and then as sales level or decline reduce prices.
You think the Z32 market is the only one where somebody is likely to copy a product? This market is too small to do it for money and not do it for the love of the car and to better the community.