reproduction challenger door shells

I see two different people making them, one is Dynacorn and a less expensive one made by Golden Star. Has anyone heard any reviews of either of these? I'm assuming Dynacorn are better, but they are almost twice as much. I'm wondering how the golden star stacks up to dynacorn.

Golden star is basically GoodMark, your just buying directly from Golden star, or an independant distributor/wholsaler,....be aware you may be buying blems/seconds/rejects the licensed distributors have returned/refused....esp on Ebay