why do I want to eat that cornerpiece so badly it looks like candy...
Also about the conical spring thing, the Qiyi Thunderclap V3 should have the hardware you need, and if you get it non magnetic it's eight bucks (10 for magnetic if you have a spare core you can transplant into it and actually make it usable). It has the same conical springs and a proper Qiyi core. The catching issue can likely be fixed with a tad of sanding as well as using Vaseline, not as lube, but to degrade any flash and rough surfaces into smooth areas to reduce catching a bit more. However, once it's smooth enough, thoroughly wipe out the Vaseline or it'll eat the plastic.