FWIW, anything I build a mold for, I will sell reasonably after I have finished the project and have backups. Problem is, I would not consider my molds perfect quality, nor robust enough for long production runs, so no commercial resale value. I don't mind touch ups on my finished piece, since making a perfect mold can be costly and time consuming. I also think it could only help the hobby rather, then them collecting dust in the loft. Downside, most of my cars our not mainstream Mopars.