They are sold here under Jetwave, but have a different door latch mechanisim and interlock style. Doesn't appear the be as prone to the same wear as that model had. No idea, on pricing or quality buy JLCPCB (sure you have seen the ads) does offer parts machining. Of course you'd have to give them a CAD or STL or whatever file for the part though. Too bad you couldn't add a small roller on that tip to handle the friction, yet still provide a solid latch when closed.
