A lot of the mfg's like AMD would love to make these items available, AMD's CEO Mark H. is a Mopar owner and enthusiast, so he knows the need, unfortunately he needs to see 2 things, either a huge Email/write in campaign where the committed number of potential buyers is so high that it's worth the investment, or a "customer/vendor" willing to bank roll the investment in the tooling, a die set up for a set of fenders can be as low as $250K up to $400K+ depending on the complexity, then you need someone to pony up a set of NOS/excellent used fender/qtrs/etc to model off of, a lot of time and $$$$ goes into even the smallest part(s) to bring them to market