Hi. I live in Denmark, so I don’t think it make sense for me to print one and send it. But if you still got the problem, perhaps you could check out JLCPCB, they offer 3D printing services for cheap, and if you are willing to wait a bit for shipping, you can get away with paying nearly nothing.
i think I have seen the 3D models of the slider here on the forum somewhere, else you could check printables or maker world for the 3D model.
I haven’t tried their printing services, but I have ordered PCBs from them. And I think the quality is really nice.
I hope you find a solution soon.
best regards Sofus.